I did test a base 535 UVLS 2/2 upgraded and found it is close on its good pulls if not inferior (on its bad ones) to amp+crit trinket for a crit itemized demo. Its obviously stronger if you gear mastery/haste with UVLS/amp but a full crit demo setup was able to match or exceed that in terms of numbers with less RNG. Basically if you game your 2pc soulfire as your trigger to be in meta and save CD's for major dump times (when amp + crit proc) on a crit based setup you can beat ULVS. I am testing without the EA glyph since that is obviously going away in the future.
Same gear as armory
http://us.battle.net/wow/en/characte...l/Werst/simple just with the T16 5x set and the T16 trinkets. Granted I have a couple generic alts to provide all the gems/chants/etc for swapping back and forth repeatedly but its the same setup. Still running troll racial though orc might be closer without the 2 min UVLS super doom opener.
If I had to rank setups right now it might look like:
1. Crit > mast > haste setup demo with amp and crit trinkets.
2. Mast > haste > crit setup demo with amp and UVLS trinkets.
3. Aff with mast = haste > crit setup with amp and haste trinkets
4. Melee'ing the dummy with a fishing pole and safari hat
5. Destro with any combination of trinkets.
The first 3 are pretty close. I rated the non UVLS demo higher due to it being less subject to RNG and more subject to reactive skill though RNG on the 2pcT16 soulfire buff are still going to RNG you. Aff is really close and possibly stronger still but its hard to get a true test until demo gets its set bonus unbugged. I noticed I was getting 4pc procs in demo that seemed to be charging me DF and chaoswaving instead of casting HoG so that is why I would give the nod to demo > aff or at least call it equal. Aff is certainly an easier spec to play than high crit demo.
You could probably start out using a UVLS/amp haste/mastery setup as a companion spec to affliction. You are just married to UVLS and all its RNG for an indefinite basis. I would almost certainly go with a 2pc/2pc T16/T15H right now but again can't say for sure until the bugs are out.