I don't have either, due to a general dislike of anything MS, and also the monopolistic features of iTunes on the other side. Basically, I don't like attempts to create any kind of monopoly, but that's just me...

The crappy MP3 player I have instead is not something I would recommend to you, though. Sadly, I don't really have enough time to spend with music these days to bother finding something really decent as yet. I haven't even gotten around to converting all my analog music collection to digital yet, something I wanted to do for a long time, because a lot of that is simply not available anymore, even if I were willing to sell out the money to buy it a second time.