2007 160GB needs to be separated from the 80GB, that thing is the biggest piece of garbage, if you actually use 80% of the capacity the thing is nearly non-functional. I voted for the 2007 classic, not only was the 160GB nearly non functional when approaching 80% capacity, the 2007 classics were nearly unusable for about 6 months because of the poorest firmware I've ever seen from apple. Initially coverflow was unuseable, playing games would reset play counts/ratings, iPod Classic would lose all information [ratings/playcounts] if it reset itself, the iTunes software was simply awful at the time in which it would freeze up about every minute then suddenly start working again.
2007 iPod Touch was gimmicky at best, still had iPhone errors with its original firmware. Playback of music was iffy initially some songs would play for 2 seconds then suddenly skip to the next song.
2007 was the year that Apple ultimately disappointed me and has since stopped me cold for EVER ordering new products from them right out the gate. Sadly they've continued the trend of releasing buggy products and using the public to test their products without having any quality control what so ever. There is no way they even bothered to turn on the 2007 classic when they released it, I couldn't see how any company could have even thought that crap was acceptable.
iPod Nano 1st gen was the worst sounding iPod I've owned, holy FLAT...2nd gen nano was also pretty flat.
I know the 3rd gen shuffle gets a lot of flack, but as a owner of one it has been functioning just fine for my particular needs. The sound improvement over the 2nd gen shuffle does actually make it hard for me to go back to my 2nd gen. Definitely could see how this would piss off some people though considering the stock buds don't fit optimally in 90% of the population. Very poor value to cost ratio too, for $20 more bucks you can get a refurb 8GB nano 5th gen with double the capacity,screen, video support, camera, and click wheel games.