Who's your favorite publisher?

Ubisoft for Assassin's Creed series, except AC3. hoping Uplay 4.0 will be better

It's a tie between Valve and Bethesda for me.

1. Bethesda
2. Valve behind by a little bit

Valve and 2K Games

Paradox Interactive

Black Forest Games!

2K wins for prices and prices drop, development times, customer care, licenses and, well, everything else.
Valve is another excellent publisher if not for their awful support and the fact that they need ages to develop a game.

I don't know how bethesda can be somewhat good, since they tend to allow low discounts, fucked up id software along with other small developers and made a mess with the release of Fallout New Vegas. It's not too different than EA or Activision.

I'd put it like this:

1. CD Projekt Red
2. Valve
3. Bethesda/2K

1. Square Enix (Games)
2. EA (Best Effort, Mirror's Edge 2)
3. Ubisoft (Most Interesting Concepts)

-2k games

-sega

-valve

-deep silver

EA because of origin

thq for making their games real cheap before going out

Valve is my favorite. I also like cd projekt red

2K by far IMO. Great pc support, excellent discounts, I've never heard of any developers complaining about 2K, and I don't think I've ever played a bad 2K published game ever.
Square Enix probably a close second. Probably would be my #1 if I liked J-RPGs, but I don't so a lot of their games are "meh" to me.
Bethesda probably third.

EA and Ubisoft have good franchises, but they milk them dry and play the dlc game to a ridiculous level. Also I hate Origin and Uplay.
Sega is hit and miss. Activision doesn't discount for crap and is commonly spewing out under-funded trash.
Deep Silver and WB Games are getting better, but still pretty hit and miss. Deep Silver, with the acquisition of those high profile THQ franchises, should get some good income and be able to improve even more.

I don't count Valve as a publisher.

CD Projekt Red. Coolguys.

2K Games !

City Interactive

quality at it's finest

I don't really care, I only buy considering the product itself. And I don't remember which one published most of the games I like (many of which are indies and thus don't qualify).

EA, Valve, 2k Games and Square Enix.

CD Projekt Red by far.

Bioware for mass effect games

Probably XSeed for the bringing the Falcom games to Steam.

Sega (i hate their guts actually but they're the publisher of Total War and whatever future Warhammer/40k games will come out)

Paradox (they make/publish buggy games but i love most of the)

Bethesda (for giving me Morrowind in which i sunk about one year of my life :D)
CD Projekt Red (i don't think this one needs an explanation)