I've read in a few places that it's Versatility > Crit > Mastery but ever since I've swapped out my mastery over crit I feel like everything is dying slower. Wouldn't it make more sense to have op bleeds with mastery because the crit gear over mastery gives you very little in return for the loss of mastery
It's Versatility > Crit > Mastery. That listing posted above is wrong. Don't ever rely on those.
Crit gives you more primal fury procs and it's more about shred spamming with Incarnation and Ferocious Bite crits now, not so much bleed damage. You should be enchanting versatility.
Don't go for 4 set either, take versa helm, shoulders and gloves. 4 set bonus is pretty naff. Get as many vers pieces as possible.