I agree with Chuck Hagel about next to nothing politically, but he's proving himself again and again to at least have horse sense and a spine.
Amongst the current crew of cuckoos thinking of a White House run, Hagel stands head-and-shoulders above the fray (politically I prefer Feingold, but his chances of garnering the Dem nomination are slimmer than Towson University's chances of advancing to the Final Four). Hagel's pretty strongly conservative, but he's not much to the right of HRC or that oily credit card company hack Joe Biden. If the Democrats win the House and Senate (insert canned laughter here), Hagel would perhaps be the sort of President who could stage-manage an exit from Iraq.
I don't know that I could vote for or actively support Hagel--especially given the likelihood that the next President will replace three or four Supreme Court Justices--but if he were running against Hilary in '08 I'd be sorely tempted to pull the R lever for the first time ever.