I think Graham is better with the ball at his feet and using it to bring others into play, but often when marked by a decent centre half and we're chucking balls forward, he's hopeless- akin to Mikkelsen at times. The delivery has to be right for him and without that, it's pointless.
Stewart is potentially a better player if he keeps at it, with better speed, movement and a decent knack of getting into the right places. He doesn't half look clumsy when he's running at pace sometimes, though. Not as comical looking as Tony Dingwall, but you expect a strong gust to blow him to Maryburgh.