Ill try not to be biased on this:
SE is pretty much one of the only top dog game companies that dont doa scumbag move every once in a while.
While not for everyone, SE is arguably the king of JRPG. You hear RPG/JRPG, you think Final Fantasy
They ARE lacking IMO in the other genres though, which somewhat limits them from being truely compared with EA, Activision, and Ubisoft.
Keep in mind Hitman, Tomb Raider, and Deus Ex were Edios Interactive, which SE bought. Before 2009 (Including Square with this) A lot of their games were RPGs.
Dunno what im going with here actually, I just started writing.
SE is definitely one of the top big time game companies.