In regards to Obama-Biden
Color me satisfied. Biden adds foreign policy experience to balance the newness factor, gravitas to balance the 'rock star' factor, and a nice healthy streak of moderate-left attack dog politics to balance the 'nice guy' factor.
Clinton supporters: yes, you're disappointed. Now get over yourselves. McCain is NOT preferable to Obama, and you know it.
Edit: In the interests of full disclosure, my first pick in the Veepstakes was Bill Richardson.
It also occurs to me that the choice of Biden says something about the depth at which Obama looks -- he's not letting Biden's infamous 'clean' remark from early in the campaign be an obstacle (which the press made way too much of anyway).