Which of Bach's Cello Suites are the best?

Ive listened (briefly) to movements from all six, and I love them, but they started to seem a little repetitive after a while. And seeing as six suites, each composed of six parts, = 36 songs to listen to, I only want to download some of them to my ipod, and I dont want to take forever downloading and yzing each of the 36 lol. So...which of the suites would you suggest I get, for variety's sake?