Which Alchemy mastery would you suggest to take in Cataclysm?
Potion mastery would yield extra procs of HP, Mana, Rejuvenation, Concentration, Tol'vir(agility) etc etc, which are all useful - especially since they are crafted a lot, so Potion mastery has a lot of opportunities for its proc to happen.
Elixir mastery would yield extra procs of Elixirs and Flasks, however i am not sure how does this mastery interact with the "Cauldron" system - as well as the fact that you can not use Flasks and Elixirs at the same time. Also Flasks/Elixirs are consumed/crafted a lot less then Potions, so the opportunity for Elixir mastery to proc is significantly lower.
Transmutation mastery affects gem and metal transmutations, however i THINK they all share a single long cooldown (24h or something) - meaning Transmutation mastery has very very few opportunities to proc, since it is crafted only once a day. However even a single proc from this mastery would be quite valuable.
Overall every mastery has its advantages and weaknesses - however, as a PvE/PvP Hunter, i just can decide which Mastery should i take.
Can any of you folks please give suggestions which Mastery to take, and why?