"Oooh, a cooking thread! Quelle surprise! *mock gasp*
I actually don't have the answers for you on that. However, in place of them I do have some more information that might be of interest.
So you might have heard for Cooking in Mists of Pandaria we will have specializations. At the moment we're looking at around 5 branches of cooking, for example: broiling, steaming...etc.
Each of these specializations will focus on a particular stat. So let's say the Steaming specialization allows you to create Agility food. A rogue would find that very interesting, and would probably want to max that one out first. At which point, said rogue would be able to create Agility buff feasts for groups. Cool, huh?
But worry not, once you max out in one specialization, you can then work on the other specializations. :)"
I'm looking forward to this idea of Cooking specializations, that seems like fun. It also seems like it might encourage more folks to get involved with Cooking since they'll be able to increase their food buff by doing so. What I'm most curious about is whether this would potentially change the dynamic of the buff feast such that players will expect to bring each variety to raids to access all of the different boosted buffs. That's definitely something I plan to check out once I get into the Beta :)