Which spec seems to be performing better now for 5.4?
Unless your raid lacks aoe its unquestionably affliction.
I am not exactly blazing through heroics atm, (curse you oceanic lag, entire night lost) - but so far
immersius - affi - could have /danced naked and the raid would have still killed it
protectors - affi - soulswap all day, didn't bother trying demo.
norushen - demo - our first enrage wipe (~5%) we were all affi with one demo lock who smashed us - so we all swapped demo, did ~20% more, and it died. Dunno if rng involved, but it was significantly better.
sha of pride - demo - we have one lock affi, one lock destro for this - I am significantly ahead on logs as demo. Running mannoroth, and we get close to the middle, then DK aoegrip for the reflections. Haven't killed yet - but seen enough to be confident I will be staying with demo.
Sidenote: The rumours of UVLS's death have been greatly exaggerated :P
So, is there any chance for demo if I don't have UVLS at all?
Can't even simulate it, simcraft seems to malfunction without having UVLS in the profile...
Will UVLS from LFR work? I'm a fairly new warlock and I'm mainly going to do Flex raids and looking for what specs to run and as of now I'm thinking aff/demo.
I use it. It works but you must make EVERY OF IT'S PROC COUNT.
Or you will regret it.
I played affli on most fights and destro when there is more aoe needed like Sha of pride but I think I will switch demo for destro
The "best" or "best performing" spec is always dependent on what your raid needs to kill bosses and what role they need you to fill. So there is no right answer, because there are roles that all three specs fill exceptionally well.
On pure single target (i.e. juggernaut), it is fair to say that choosing destro would always be suboptimal. After that though, its totally dependent on your assignment based on your guild's strat. I'd avise you to learn all three specs and their strengths and weaknesses, and adapt based on what your guild needs from you to kill a fight. The goal is to kill the boss. That's rarely totally aligned with the goal of topping the overall damage meters.