Originally Posted by
Kuni Zyrekai
1. RNG and gear dependant. Getting procs at opportune times, haste will probably win by a tiny margin; otherwise mastery is a bit more stable. At higher gear levels, the distinction breaks down, and you suddenly end up with 15k haste and 20k mastery raid buffed, and you start getting the best of both worlds.
2. There was a period early this expansion where 23% fully buffed was the ideal goal, and you went for that above mastery, but crit usually just shows up. Being crit capped isn't important this expansion. Just as long as you have enough to stabilize your DPS, not getting a quarter of your opening procs to not crit and things like that. Being fully crit capped is always below mastery and haste.