Rockstar games for sure. The whole GTA series is amazing, but Red Dead Redemption is really something beautiful, and it was the best game of its year. L.A. Noire had amazing face graphics.
Every company named so far were ones i was thinking of, the only one I can think of that I didn't see here was Namco Bandai Games. They made the 'Tales of' Series (Such as Tales of Symphonia, Tales of the Abyss, Tales of Destiny, etc.) which is the only 1 player RPG series to rival Final Fantasy in any way.