A lot is being said, but afew thoughts from my end -
1. I thought I had respect for Mr McCain and then I saw him sadly choose an idiot for his V-P candidate. I am using a hard word like an idiot because a) she believes that the earth is only 4,500 yrs old, b) believes that all of the world is Christians, c) believes that God talks to her (so what stops her from pushing the red button and say God told her to), d) believes that all animals came to Earth on an ark
2. I wouldnt want a person who didnt have a passport till a year back to be the C-i-C (Commander in Chief) of a nuclear superpower in case Mr McCain pops it.
3. McCain is a man of a violent temper and has in the past sneered at anyone who dared raised objections (http://www.economist.com/blogs/democracyinamerica/2008/10/mad_man.cfm) causing anxiety that he would surround himself with yes-men.
4. Obama, of course, sufers from lack of experience and has at times given signs of shifting to please the vote bank, but at least if something happens to him, there is Joe Biden!