Basically, the opposite of how McCain picked his:
Think of it this way: it's tough being a politician. No matter what your goals are, you're always having to compromise. The vice-presidential nomination is one place where playing politics doesn't seem to work. So I suggest forgetting the cleverness and forgetting about the idea that voters choose candidates based on their looks, and just picking the person you actually think would do the best job. Ruling out the Quayles, the Bidens, and the Palins . . . that wouldn't be such a bad idea, both as politics and as policy.
The Dish 