The thing that bothers me, however, is that there seems to be a lot more versatility on PvE items, so mythic raiders will theoretically be able to gear up better for PvP.
Well... we'll custom what we can.
It's weird not having gem sockets and much less with much less variety of Enchants on gear. I think it's better honestely but I think it breaks the economy. Not my problem, I'm far better just having Enchanting and Engeneering for everything I want/need from the game.
Whatever stat we decide on, will have about 1000 (with procs) more. It's a decent number of custom stat, we'll just have to choose wisely.
I think we're between Versatility and Mastery (since Haste is OK above 15% and Crit/MS is unreliable and not enough).
Say: 1000 Versatility gives us how much more damage/healing/mitigation and 1000 mastery gives us how much more damage? That seems to be all we can think/choose/do.