And unlike say the gov. of ohio and PA Bayh more or less kept his mouth shut about attacking Obama. No weird moments for anti-Obama ads from him.
Bayh IMO is his best possible choice.
Lots of experience
From red state
White blue-collar support
Former Hillary guy to help with unity
Never is off message
Young, good looking guy makes a good picture with Obama
Both he and Obama would be a mid-west ticket with most swing states in the mid-west this helps
Only drawback is he isn't that charismatic, but Obama is so charismatic and affable it really is not something Obama needs (unlike Kerry who needed the friendly charisma of Edwards to make up for his aloofness)