Does Nintendo qualify as a developer?
In any case, though the poll is redundant as outlined by mark_n_b, I'm gonna go for Intelligent Systems, HAL, Retro Studios, EAD (all first- or second-party Nintendo devs), who I guess could all be lumped under "Nintendo".
Other than those, Bioware and Blizzard are the two big ones for me. Oh, and SquareEnix.
In any case, though the poll is redundant as outlined by mark_n_b, I'm gonna go for Intelligent Systems, HAL, Retro Studios, EAD (all first- or second-party Nintendo devs), who I guess could all be lumped under "Nintendo".
Other than those, Bioware and Blizzard are the two big ones for me. Oh, and SquareEnix.