Favorite Devs?

[BFG9001]

Mine are:
1. id software
2. Valve Software
3. Bethesda Softworks

OK, go.

[TheMatrix]

RedHat, Inc.
Idol Minds
Novell

There are many more, but you probably haven't heard of over half of them. :P

[Suicune]

1. Hal Labs
2. Game Freak
3. Capcom
4. Atlus
5. Level 5
6. Mojang
7. Atari
8. Project Sora
9. Sega
10. Valve Software
11. Konami

In no particular order. :p

[Rayquaza]

Activision, Quantic Dream and Mojang

[Nukes4fun]

1 square one game studios ( because i made it)
2 Game Freak (pokemon)
3 valve
4 id software
5 rockstar north (only because of san andreas)
6 kairosoft
a ton of others

[Aves]

1. Bungie/343 Industies
2. Bethesda Inc.
3. Valve Inc.

[Lawliet]

Valve
Blizzard
Mojang
Bioware