From my testing it looks as if there are specialities (which hence their name) to each spec where they shine, while the others fall short heres a quick analysis.
BM - Great Self Healing (pet heal), Consistent Pet damage (without LOS), Medium to High Single Target Damage within a 10 second window (depending on CDS used)
- BM has great burst if you POP all your cds, but please don't be fooled that just because Stampede is helped by BM that means it automatically does the most burst. Wrong. Every spec has stampede and just because it gets a benefit does not grant the highest single target damage to the spec, infact I think it's actually either survival or MM. Hurt by LOS the least.
Survival - DOT damage (serpant sting is like a lock dot), Entrapment (is actually a big deal in pvp), On-demand burst (LNL), best AOE spec (is actually decent with 8 second dispel in PVP now.)
- Surival has been great while leveling, you can mow down anything by spamming traps and multi shot, (you'll see it will most likely be king in BGs). I also enjoy the LNL procs which can sometimes bug and you can get back to back ones meaning you have 6 explosive shots = 18 ticks. Good 6 GCD burst. LOS is meh but still kinda needed.
MM - Bleed (consistent damage), Arcane shots (from very weak calculations seem to be 10-15% less then Survival ones (Crit reforge, no mastery). Aimed Shot does a good amount of damage, (more than Chimera), steady shot damage seems higher than in CATA, (means steady shot > arcane in many circumstances- because of 3 stack intead of 5), and Chimera isn't that much damage tbh. BUT, this spec has the best 3 GCD burst of all specs by far. Probably the worst sustained though. Hurt by LOS the most.
I'll rate In a few easy and compressible categories from my 3 days of playing thus far:
Healing : BM > MM > Survival
Overall Damage : Survival > BM > MM
Burst : MM > BM > Survival ( one thing to note is that this changes once you go past 3 GCDs)
AoE (very significant now) : Survival> BM> MM
That being said, Live has very little carry over. So I wouldn't discuss any numbers on live atm.
Edited by Chromex, 31 August 2012 - 06:01 PM.