My bear tank for aoe threat management and i mean above 8-9 mobs is subpar, but for anything else the armor, health, threat, pre-hotting, offloading the pressure from my priest healer, battle res and so on is OP.
Very easy rotation for multiboxers... spam Maul and Swipe

Current team: bear tank/2 x mages/warlock/priest @lvl 44

if you want massive aoe pulls for a spell cleave group maybe another tank is better...
But for reasonable pulls, and bosses, bear tanks are excellent and very easy to handle.