Quote by OnimusaruSquare Enix - For their high quality RPG titles that happens to be my favourite genre.
Capcom - For the Onimusha, Resident Evil, Devil May Cry series.
Level 5 - For titles like Dark Cloud.
Konami - For Silent Hill, Metal Gear Solid, and Castlevania.
Tecmo - For the Dead or Alive and Fatal Frame games.
Namco - For Soul Calibur and Tekken.
Working Design - For the Lunar games.
Electronic Arts - Need for Speed.
Sony First Party Studio - God of War, ICO, & Shadow of colossus.
Nautilus - Shadow hearts, Shadow Hearts Convenant, & Shadow Hearts For The New World.
Polyphony - Gran Turismo.
Gearbox Software - Half life 1 & 2.
Nintendo - Mario, Donkey Kong, & Zelda.The list goes on.
Favourite means you only pick on or a few, not every good game developer in existence.