The Hill offers a senator's view of the most bipartisan Republicans. Orrin Hatch ranks high on a list of easiest senators to work with. At the top are Ted Kennedy, D-Mass., and Susan Collins, R-Maine. Hatch, whose peers rank him third for bipartisanship, and Kennedy are famous for their friendship and close working relationship.

But more interesting than Hatch's affability is his reputation for sartorial style. Beyond liking to work with Hatch, Illinois Democrat Roland Burris says:

I admire how he dresses. He is one of the sharpest dressers in the Senate.

By the way, the most partisan senators, according to their peers, are Jim Bunning, R-Ky. and Patrick Leahy, D-Vt., which could explain former Vice President Dick Cheney's infamous advice to Leahy: "Go f*** yourself."