If his Cap and Trade bill passes it will be the largest tax increase in the history of the world. He is spending more money than any other president ever, probably more than all of them combined. All his policies are hard-left ideas that he learned his ultra-leftest friends. His health care idea will not help anyone and will, if it follows the lead of other socialist medical schemes such as in Britain and France, make it difficult to impossible for people to get the care they need in a timely manner. Many will be told that they can't get any care because their treatments are "too expensive." He's taken many businesses (GM is an example) and put them directly under the control of the government. This is unConstitutional and should never have been done (not that Obama cares about the Constitution).
His policies are already (he's only been in office six months) causing unrest among the population and this will only get worse as people began to realize that his policies will indeed adversely affect THEIR lives and pocketbooks.
So, no, I don't think that Obama is the best President ever--more likely he'll be the worst one we ever have because, more than likely, he'll be the last President we ever have.