1. George Washington, no question
2. Abe Lincoln
3. FDR
4. Ronald Reagan
5. Teddy Roosevelt
Side note_ I do not include Bush in the rankings because his presidency is still in progress. If he had been shot this morning I would have put him at 5. I expect him to be higher by 2008, If he succeeds in changing the face of the mideast.
Bottom:
38. Jimmy Carter
39. Rutherford B. Hayes
40. Richard Nixon
41. Ulysses S. Grant
42. Warren Harding
You've had one of the most sensible lists I've read all day. You admit that President Bush's Presidency is not over yet, and thus he cannot be FULLY judge. You also don't have William J. Clinton in your bottom 5 as others do. However, I would argue that George Washington is not the best President, I don't really see what he did to earn that title.
I intend to post MY list soon, however, being the "historian" that I am, I must do some extra research to make sure that my list is not just fluff.