A contribution to early Cataclysm theorycrafting
Attachment 2323 updated october 6th 2010
Here's a little spreadsheet I've done trying to modelize the main theorycrafting aspects of a fictionnal Cataclysm tank warrior (but with some changes, you can adapt it to another class).
The main reflexion is about how the new block (=mastery), the new parry (Edit : no more, back to classic), and the disparition of a lot of miss related to defense would affect the main theorycrafting standards like EHP, total mitigation, Tankpoints, time to live, and so on.
This is a personnal and prototypical research, and I perfectly know there is far better theorycrafters than me on this forum, like Sattori, Satrina, Aggathon and others. This is precisely why I post here. I hope it may interest you, and I hope you could offer corrections and share your opinion.
The main thing lacking in my spreadsheet is Blood craze (http://cata.wowhead.com/spell=16492). I'll add it in a future version. Avoidance should have bad effects on this talent. (Edit : added)
Besides, my feeling is that Mastery cannot easily compete with dodge and parry, unless very high DR.
ps : excuse my english, i'm not native.