While it can't be denied that they've put out a couple bombs, they are generally an awesome game creation studio... when the different sectors can get along.
BioWare makes some of the best games recently. The CoD and MoH series have gone down the drain, and BioWare's RPGs are the only games I find to be worthwhile.
If you can't guess, my favorite is BioWare :biggrin:
Blizzard by a long shot!
Love the Starcraft series, Starcraft , broodwar and Starcraft II and used to play WC II a lot as well
After Blizzard it would be, Bethesda probably, Love their RPGs Oblivion, Fallout 3 and Fallout New Vegas =)