I do think she was a bold, politically-astute choice, meaning I think she can help John McCain win the presidency.
I do not see how she can be justified as the best the GOP could come up with--not by any partisan stretch of the imagination.
My point: McCain says he's different and will put country ahead of himself and his political goals. I think his choice of Palin, the most important and revealing choice any candidate for president makes, says otherwise. Choosing her says he wants to win the election more than do what's right by the office, and that diminishes a powerful aspect of his appeal, in my mind.
As for Obama's experience: in our political system, if you can pull off what he's pulled off over the past year and a half in building and leading a political machine, that's all the qualification you need to be president. That is a huge CEO/leadership operation and that's just how our system was built to operate.