I liked this apt description of the way she answers questions.

Given any question, she reaches into her bag for the readymade sentence that sounds most nearly proximate to an answer, and, rather than speaking it, recites it, in the upsy-downsy voice of a middle-schooler pronouncing the letters of a word in a spelling bee. She then fixes her lips in a terminal smile. In the televised game shows that pass for political debates in the US, it’s a winning technique: told that she has 15 seconds in which to answer, Palin invariably beats the clock, and her concision and fluency more than compensate for her unrelenting triteness.