DNC Chair Howard Dean
Rep. Tim Ryan
Rep. Patrick Murphy
Sen. Bob Casey
Sen. Sherrod Brown (I think he's adorable, maybe not everyone's cup of tea)

If we can count the DLC, Harold Ford's easy on the eyes, if annoying in his politics.

I also know some are taken with Rep. Van Hollen, and Gov. Bill Richardson (with beard).

And don't forget Sen. Barack Obama!

With Kleeb, that's ten right there.  I'm sure we can drum up two more.