I ty to vote for the candidate that steals less, lies less, has a certain amount of knowledge and intellegence, and who has more dedication to serving the public, rather than himself. Basicly, I am given only two real choices in the matter. A good example is the 1991 Louisianna governor election between David Duke, the Grand Wizard of the KKK, and Edwin Edwards, the crook. The crook won, which was predictable by tradition, but was a little too greedy, and has been in the slammer for years. Folks in Louiisianna consider fraud by polititians to be acceptable and inevitable at between 2% and 3% of the cost of living there. Above that, they get irritated and send their polititians to prison.
Sometimes the chioce is easy. For example, Nixon was so over the top that it was impossible to find anyone to run against him that was worse than he was. Bush II was another example of this. Other times, it isn't so clear cut. Obama and McCain were pretty well matched in that each offset the other's weaknesses....until McCain added a running mate that had the intellegence of a sack of hammers. Of course, Obama's choice is a clown, but he is good hearted and probably steals less than the average polititian.