Ipod! The reason be... I have had my ipod old school 20 gigs for 3 years now, no battery problem occured. Also the ZUNE, i heard has a bad problem with pirated music, it wont let you play mp3s you had downloaded, only bought music of ZUNE marketplace and ripped cds off windows media player. Thats what i heard. I would go ipod, lightweight, long battery life(for me) and awesome click wheel.