I suppose this list considers only current-gen games.
Naughty Dog/Insomniac would be my favorites. Santa Monica is a good third and Guerrilla is a safe fourth place. Japan Studio is very inconsistent but Last Guardian and SOTC are so good so it makes the last spot in my top 5.
Apparently not since he's got Gran Turismo 6 there... he's also missing some current gen games such as the first Knack, Tearaway Unfolded, and the Gravity Rush games.