Obsidian. Have not set a foot wrong, as far as im concerned. KOTOR 2 was a fucking masterpiece that kicks the shit out of its predecessor and successor, Neverwinter Nights 2 was a very good game, with 2 awesome expansions, one of which may as well be Planescape: Torment 2, and the other may as well be Icewind Dale 3. Alpha Protocol rocked, fuck the haters, and Fallout New Vegas was the true sequel to Fallout 2, and lived up to that legacy. Im still playing Dungeon Siege 3, but im enjoying it so far. Bioware also, but Obsidian just make better games, im sorry.