EA. EA Partners is great. Love DICE and the Battlefield franchise is my favorite. Bioware make my favorite singleplayer RPGs. If I play a sports game, it's an EA sports game. Fond memories of Fifa Soccer. And so forth.
Pricey, because Blizzard is a close second to DICE, but hell, shooters just have the best moment to moment gameplay and Battlefield has biggest moments of all.
While I do enjoy most of what Blizzard creates, they don't do it often enough to justify playing Activision games exclusively.
I believe EA only publishes the physical copies of whatever Valve creates, so I wouldn't really count them as a creative studio they own/partner with. Just me though
That's a tough one. Activision does have some games that run very good stories (i.e Prototype and a couple of Call of Duties). Though I'm not going to bash on the company because of Bobby Kotick. I'll just bash on him. Although so far EA has been dishing out some good Battlefield games lately and they're still supporting their online PC games with updates. Other companies, once their games have been out there for almost a year, then there's no more support. The EA Partners program I'm a lil iffy on. They say it will help newer developers, but I get the feeling something will go wrong. Maybe I'm wrong. We'll see in the future.