Your top 10 developers.

[Plurralbles]

Some aren't even around anymore.

Pandemic
Clover Studio
Valve
Stardock
Epic
bioware
Bethesda
Nintendo
Rare
Squeenix

I haven't been (badly) disappointed by them ever.

 

[Agiel7]

1. Relic
2. Black Isle Studios
3. Valve
4. Stardock
5. GSC Game Worlds (granted, their games are a tad buggy)
6. DICE
7. Troika Games
8. Bungie
9. Blizzard
10. Ubisoft Montral (They would have been a lot higher had it not been for the ludicrously insane DRM).

 

[GonzoGamer]

1. Q Entertainment
2. Q Games - THe Qs (as I call them) don't make big budget titles but they never disappoint either.
3. Volition
4. Relic
5. Black Isle
6. Bethesda
7. Avalanche Studios - just got on my radar with Just Cause 2 but the Avalanche engine used is very impressive.
8. Namco Bandai and Mary
9. Nintendo
10. Rockstar - Hasn't impressed me lately but San Andreas is an all time favorite.

 

[Rewold]

1. Square Enix (Final fantasy be victorious)
2. Kojima (MGS story unrivaled)
3. Bethesda (Elder scrolls, fallout3)
4. Dice (Battlefield is the best fps there is)
5. Blizzard (warcraft series, not wow)
6. Westwood (good ol' red alert 2)
7. Ubisoft (AC)
8. Relic (warhammer 40k, company of heroes)
9. Free Radical (Still waiting for the new Timesplitters)
10. Insomniac (No one dislikes ratched and clank )

 

[Maltyz]

I'll just say Valve & Rockstar! =P

 

[Zannah]

1.) Bethesda
2.) Arkane Studios
3.) Starbreeze Studios
4.) Bioware
5.) Valve
6.) Lucas Arts
7.) Infinity Ward
8.) Capcom
9.) Ubisoft
10) Crytek

(If shut-down developers count, feel free to replace the last two ranks with 9.) 3DO and 10) Troika)

 

[starwarsgeek]

1. Nintendo
2. Bioware
3. Capcom
4. Blizzard
5. Konami
6. Insomniac
7. Sega
8. Valve
9. Bethesda
10. Bungie

 

[Flamezdudes]

1. Bioware
2. Valve
3. Bethesda
4. 2k
5. Rockstar
6. Ubisoft

 

[JourneyThroughHell]

Alrightey:
10. Relic (Best strategy games I've played)
9. Ubisoft Montreal
8. Bioware (KoToR, yeeeah.)
7. Valve (Well, they have to be here somewhere)
6. IO Interactive (Hitman, YEEEAH!)
5. Rockstar Games
4. Codemasters (Toca Race Driver is enough for me)
3. DICE (Too bad they can't do singleplayer for crap)
2. Quantic Dream (both Fahrenheit and Heavy Rain were completely fucking shock-inducingly awesome).
1. Infinity Ward (well, duh, look at my avatar)