Vanilla is a product of Lussumo:
Documentation and Support.
I've been convinced that Bayh's the key for a while now, not least because he's going to be sitting on a packet of markers arranged by Daddy. He's endorsed Hillary, but he'd benefit Obama enormously.
Kerry was in no one's serious picture of the Democratic outcome until the day after the caucuses. No one I remember, anyway.
Right now, I'm calling it Obama/Bayh for the Dems, and Guiliani and the ghost of Idi Amin for the GOP.