Scott gets some of his stats in garbage time. Good example would be the 3 he hit yesterday vs LBS when Ohio State was up 30 and just going through the motions to finish the game.
Defensively there's really not a comparison at this point. Steals don't account for quite a bit. For example, Craft turned over LBS point guard twice in short span - one were he forced him to travel and another was a 5 second call. Neither show up in the box for Craft. This happens a lot, hidden things he does for which there is no tangible stat as evidence.
None of this is to say Craft has been excellent this year offensively. He knows he has to score more and he started well (5-7 from deep) in the opener but he's now fighting shooting technique. For me, he has to start. He's the quarterback of the team, best on the ball defender in the country and a great leader.