I don't like either ipod or zune because with both you are shackled to their own proprietary music software which is annoying when using it on more than one computer your pretty much screwed and because its mocrosoft they will have their drm all over it
I like Sandisk Sansas because they are pretty much the same thing but work with almost any media player and you can rockbox them
zunes are pretty awesome. i got a 4 gb zune and it has all the features a ipod can have as well as fm radio and syncing wirelessly with a computer. still i prefer zen better(i have a zen v plus and has all the features a zune*yes, even video* has execpt the wireless)
They just don't seem very good. Sure they got a bigger screen, but the battery life with an iPod is greater, its easier to use, and it has more features.