Personally, I liked what they did with MW, although I don't like that they removed Fistweaving. I really liked that option for PvP when I got attacked by Rogues and what not. It at least let me fight back a bit before dying... Now we're just going to get killed by the melees without putting much of a fight back. Aside from that, the actual healing changes, including the MUCH NEEDED mastery change was really nice.
I HAAAATED the BrM change. No more Guard? Instead we got a poor man's Warrior Shield Block in the form of Iron Skin Brew. I absolutely have no reason to play BrM over my Warrior now. In fact, Warrior tanks got a nice buff with Ignore Pain which is a flat 90% damage mitigation for a hard hitting spell with no CD and only 40 rage...
Also, Tiger Palm now costs 50 energy? Doesn't even buff us with 30% armor pen any more.
With the removal of Chi and no free spamming DPS ability filler, they're going to have to increase the regen of our energy by 300% unless they expect us to wait 4 seconds in between strikes while we wait for our energy to replenish...
Lack of Guard is just the biggest kick to the dick though. No thanks. I'll tank on my DK in Legion...
As for WW, I don't play that, so doesn't really matter to me.