With the current changes, i'm not completely sure if i'm going to be content with the discipline changes so it's time to get a backup plan and look into holy but thing is, i've always itemized for disc. I know some people prefer the haste, some prefer the mastery but bottom line, which one will give you more throughput for end game raiding?
http://us.battle.net/wow/en/character/baelgun/scrabbles/simple
My haste is currently really low as you can see since I was a bubble bot for the most part.