This is actually dead WRONG. Bush is stupid, but the reason he won was because people PERCEIVED him as being the "guy they most wanted to have a beer with" - this was an actual poll I remember during the 2000 election. It held over to 2004.
No one wants to have a beer with McCain. He'd fall asleep in it. And he needs all the brain cells he has left.
Obama is BY FAR the most charismatic of all of the candidates. Biden and Wackjob are probably in a tie for second - it depends entirely on your views which one you could stand to have a beer with because they both tend to be windbags with a lot of opinions.
McSame is the gross uncle you leave at home because he's too embarrassing to be seen in public with.