What specifically do you base this on? Showing up at Ground Zero was his job, he didn't actually do anything.
He turned around the City, you must admit. Also, he DID do a good job during/after 9/11. The city needed a take charge personality, and he took charge. Call it superficial, but personality matters in moments like that, and in leading a war.
My main point, however, was that his abortion stand will prevent him from getting my primary vote.