So there's a few threads on these forums floating about, including the threads containing various BiS lists. All of these BiS lists are derived from stat weights and I've been saying for some time that I needed to revisit these weights for both holy disc.
As a disclaimer this is my THEORYcrafting, it is theory and may contain errors. Don't take any of this as hard fact, it's sold as seen and is my best effort.
To arrive at these conclusions I used 2 methods;
1) Mylliors spreadsheets, they are super useful. I took the top logs I could find for each spec and put them through these spreadsheets. These are the max hps fights I could find - what good is a BiS list without a BiS fight? (probably quite useful, but if I open that floodgate there's no coming back)
2) I used my own spreadsheet which is a general model of max potential throughput within certain parameters (stats, fight length, spirit). The aim of this spreadsheet wasn't to model any specific fight but more to model what is possible in ideal circumstances, it has knock on uses for modelling specific phases (eg, last phase of Imperator Margok mythic, assuming you enter with 0 mana. Would equipping more intellect or spirit help your hps most here? Find out later!) and has the drawback that it is not a simulation, it's a measurement of the average only. it assumed perfect conditions, unlimited damage to heal on unlimited targets with 0 overhealing. Interestingly, despite these conditions the stat weights lined up very well with Mylliors spreadsheets, as you'll see below.
All of the calculations used my proposed BiS lists (as linked elsewhere on these forums) as a starting point, that means these stat weights are for ENDGAME, for determining BiS (BEST IN SLOT!). For my own spreadsheets it was essentially a game of adding x amount of a stat and recording the increase in healing done over the given time frame. The given time frame was the time until oom with the baseline gearset for each spec. The 'x' amount of stat increases I measured were +50, +100, +500 and +1000. Whilst +1000 of any stat is quite unobtainable at this ilvl I wanted to include it to make obvious any scaling issues.
These stat weights were also only done for specific talent choices. For Mylliors spreadsheet the talents from the logs were used. For my own the following combination was used for each spec;
As holy I ran with mindbender, Cascade and PoM
As disc I ran with solace, cascade and PoM.
Adding ToF into the mix made very little difference and I struggled to find a way to accurately model how players use PI and adding the average haste amount didn't really feel like an accurate representation. If you wished to find stat weights DURING PI that would be more feasible but ultimately not that useful (at least to me). And since they were all done in BiS gear, tier sets were included - as proposed in the BiS lists.
I should also note that haste and spirit are modelled differently.
Haste is modelled as a pure throughput stat with absolutely no consideration to mana. A useful thing to know if you're looking to increase your potential burst, also useful if you never go oom. I'll add some stat weights from my own spreadsheet for haste if you DO go oom although it's superficial at best. I'd propose that for most fights you should gear for the important parts, if a fight has 'downtime' then you can effectively deduct that from the fight length and determine if you go oom in the 'burst phase', which is what this is modelling.
Spirit was calculated using my own spreadsheet with a negative value. ie, how much healing is LOST as I remove spirit but maintain the fight length.
For example; if I do 150k hps over 300sec baseline, how much hps can I do over 300sec with baseline-100 spirit?
The spreadsheet models this by dropping inefficient spells to continue casting the most valuable spells for the duration inputted, rather than simply stop casting when oom and trying to cast the next spell in the queue like some other models.
Obviously, if you CAN'T go oom in a fight whilst maximizing your hps then spirit has 0 value.
HOLY
Starting with holy these are the stat weights I got from Myllior;
Int 1.00
SP 0.91
Crit 0.70
Mastery 0.50
Haste(HPET) 0.71
Multistrike 0.76
Versatility 0.63
Spirit NA
And from my spreadsheet;
Int 1.00
SP 0.91
Crit 0.64
Mastery 0.55
Haste(hps) 0.7
Multistrike 0.82
Versatility 0.65
Spirit 1.02
Haste(oom) 0.2
As you can see they're relatively in agreement with each other. The biggest difference between them is mastery, which can easily be explained by the fact my spreadsheet does not take into account overhealing whilst Mylliors does. The big jump on multistrike on mine is trickier to explain, I'm certainly open to suggestions!
You could budget for haste(oom) by taking into account the spirit needed to outweight to speed of going oom which would give haste a value of 0.5, but that's awfully clunky so I'll leave it there.
For reference in BiS gear I calculate that a maximum throughput 'rotation' can be sustained for 287.62 sec. Take that as you will.
Average stat weights for holy;
Int 1
SP 0.91
Crit 0.67
Mastery 0.53
Haste 0.71
Multistrike 0.79
Versatility 0.64
Spirit 1.02
This results in the following BiS list;
Countenance of the Revenant
Locket of Unholy Reconstitution
Mantle of the Eredar Lord
Drape of Beckoned Souls
Pious Raiment
Powder Singed Bracers
Satin Gloves of Injustice
Demonbuckle Sash of Argus
Pious Leggings
Bloody Dagger-Heeled Pumps
Ring of Foul Temptation
legendary 795
Unstable Felshadow Emulsion / Intuitions Gift
Demonic Phylactery
Gavel of the Eredar
Gibbering Madness
as mentioned elsewhere a lot of items have other options that are very close in value
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DISC
Stat weights from Myllior;
Int 1.00
SP 0.91
Crit 0.7
Mastery 0.83
Haste(HPET) 0.81
Multistrike 0.65
Versatility 0.64
From myself;
Int 1.00
SP 0.91
Crit 0.7
Mastery 0.8
Haste(hps) 0.77
Multistrike 0.72
Versatility 0.65
Spirit 0.82
Haste(oom) 0.00
Once again that unexplained multistrike jump. The rest is almost perfectly in alignment considering real world logs vs theoretical maximum.
Spirit was calculated in the same way as holy although with a much easier to measure result. Going oom means less PWS and no other real knock-on effects (some BT downtime). The very interesting thing to note here is that the value is below that of intellect
Remember that spirit was valued when oom, adding spirit would let you cast more. In the margok situation mentioned at the top of the post where you enter a phase on 0 mana and you're 'waiting' for mana to cast then adding a point of intellect would be more beneficial to your hps than 1 point of spirit. This is quite contrary to Holy where adding spirit would increase your hps.
Similarly with haste. More haste = more shields, and not much else. Unlikely holy that gains renew ticks, potential CoH casts, lightwell ticks and the rest. There is also no benefit of haste, to disc, when oom since it doesn't increase the hpm of any spell used and quite simply any extra shields granted by a shorter GCD in the given time frame is negated by the lack of mana to actually cast them. However.... unlike holy, in baseline BiS gear disc can sustain it's max throughput 'rotation' for 393.93 sec, a good 6.5 minutes of solid casting. Again, take that as you will but i think you'd struggle to convince me there is a fight in HFC with more than 6.5minutes of max hps requirements that would cause haste to be devalued. Any amount of downtime will just extend this, need to move when you could be casting Emp PoH? you just gained time. No damage out on the raid worth using cascade? gained time. Add needs to die and you're smiting? Gained time. You get the idea.
Average stat weights for disc;
Int 1
SP 0.91
Crit 0.7
Mastery 0.82
Haste 0.79
Multistrike 0.69
Versatility 0.65
Spirit 0.82
and BiS list for disc;
Demon Prince's Ascendant Crown
Vial of Immiscible Liquid
Pious Mantle
Cloak of Insatiable Greed
Pious Raiment
Contemptuous Wristguards
Pious Handwraps
Demonbuckle Sash of Argus
Pious Leggings
Dessicated Soulrender Slippers (TRASH)
Pompous Ceremonial Ring
795 legendary
Flicking Felspark / Intuitions Gift / Shadowmoon insignia
Demonic Phylactery
Edict of Argus
Good luck with loots!
EDIT to include spreadsheets.
Mylliors are very user friendly. Good luck deciphering mine but I'll include them for completeness.
Mine;
Spell calcs-
https://docs.google.com/spreadsheets...#gid=311063546
https://docs.google.com/spreadsheets...BpT5BcwaU/edit
Proposed BiS lists / upgrade sheet / Item values-
https://docs.google.com/spreadsheets...gid=1105084857
Mylliors;
http://www.mmo-champion.com/threads/...on-Spreadsheet