Well, you know what they say about Hoover. He's just like the vacuum! He... he... *ahem*... cleans...
As far as my favorite president goes, I would have to say Taft, because he's HUGE!
No- not really. Taft enforced a lot of progressive policies like his predecessor, Roosevelt (actually, more), but was a little too conservative for the turn of the century.
Anyway, my favorite president might just have to be FDR. He was an excellent president who really tried to help out during the Great Depression with his "alphabet soup" agencies, which probably would have worked in the long run! (Of course, we will never know considering that it was WWII that ultimately saved us economically). FDR, overall, was simply awesome at being rational with the U.S., and with pulling his share of the weight during the 1930s (which a certain predecessor didn't do-*cough*Hoover*cough*).
And, despite what some people may think, I do not think that FDR decided to "allow" Pearl Harbor to happen in order to give America that final push onto the world stage. That seems totally out of character, in my opinion, and I can't see FDR ever doing such a thing.
Edit: Okay, I realize that I'm being a little hard on Hoover. I mean, yes, he was too reliant on American volunteers, and refused to let the federal government get majorly involved with the Great Depression, but I guess he did make an attempt (Reconstruction Finance Corporate was kinda cute).
"Hoovervilles", though, are just too pitiful to forget. ;)