I've been using the Ipod Nano 8 gig version for a good while with zero issues and love it.

 

I guess everyone does have their favorites for a lot of reasons. Well, Christmas came and went without a Zune or Nano, I settled on a 4 GB Zen which so far has been pretty simple to operate and works like a charm in the car, at work and pretty much anywhere I need to use it. Battery life is great and although it takes a decent amount of time, synching a full 4 GB of playlists and tunes is pretty simple. The only drawback was accessing playlists on the SD card in the expansion slot, but after figuring out how to do that, I have 8 GB of music available, so I'm happy.