Auto playlists was the one feature I thought the Zune 1 software was missing. Imagine my surprise to find out it actually had it, and then my annoyance that the Zune 2 software didn't have it.
On my iPod before, I had "Smart Playlists" that had things like, songs I hadn't listerned to in the past 3/6 months. Stuff that I'd played the most, things I'd played the least. A playlist for things I hadn't rated yet.
Also, with other mp3 tags, I'd created lists called Coffee and Cocoa, which had either fast or slow music, and was orignialy based on what I'd put int he comment tag, but later the grouping tag.
While the love/hate rating might be good for some people, it would be nice to at least have the option to use the 5 star ratings as before. I had playlists based on that 4 or 5 stars. Even one on 1 star.
For some of my playlists, I'd taken advice from the guys over at
Smartplaylists.com they know some good ideas on playlists