I hate to admit it but McCain shows confidence in himself despite his partner's dramatic space invasion. Obama on the other hand would have been wary with Hillary at his side.
Apart from what DrGuy said, I, again, have to ask just how much do you Democrats truly believe in Obama? Do you not believe he is the one, the "Jesus" of today's world, the salvation of this nation, what most Americans want? Or is he really just another over-hyped politician that can't even stand against a simply Governor like Sarah Palin (who's running for VP BTW, not President) let alone a real politician like Hillary Clinton? Not to mention that by your own admission above, McCain seems to have more of what it takes to be a great leader since he "shows more confidence in himself dispite his partners dramatic space invasion" while "Obama on the other hand would have been wary of Hillary at his side".
It seems you and Biden have something in common, neither of you are trusting Obama anymore.