I'm a pretty hardcore iTunes user, with 5,330 songs (90% of which I've actually listened to) and Smart Playlists that I use frequently (although Genius is often more fun). To give you an indication of how much I listen to music, my 100th most-played song has 37 listens on it. I love how iTunes tracks my listening frequency and skip count and my smart playlists know what music I like (and don't like) better than I do. For instance, I'd have said my favorite Steely Dan album was Katie Lied or Can't Buy A Thrill, yet somehow every track from Aja is in my top 20 (5 in the top 8) - so I've realized that Aja is the album I listen to most. I've never wanted to use the 'rating' column, but all of a sudden tonight I was listening to a song that I LOVE but somehow hadn't been played very often (only 5 plays - Genius dug it up for me) and I thought I'd rate it at 5-stars. So I'm thinking of starting to rate songs, but man, how subjective is that! Can anyone who makes good use of this share your rating philosophy? Best to rate based on how listenable the song is over and over? If you rate a song at 1 star, don't think it's better to just erase it? Maybe use the rating system for songs that I like in Albums, but wouldn't want in certain playlists (like 'happy') and rate those ones as 1 - and just specify '2 or higher' for ratings for that particular playlist? I'm a verbal processor and I look forward to hearing how you guys think about this.