any mixed team can make it work to be honest, every group ive seen is different past the 4 shammy +1 pally tank, is different but still works, for dps, you take whatever there rotation is and make it a consequence, then you add in healing macros, and ur spamm tank macro. NEVER go with something thats easier, or "works better" just so you can do it, because if your gunna be playing the game as much as all of us do ;0, do what u like, its easy to make it work.

personally i hate locks for whatever reason, id never throw a lock in my group, but a druid OOOOO if i could have a 80 druid right now /quit 1 shammy. just ur preference and what u love to do in the game, you can make it work ;0