1. Emusic: Love it for Jazz, Blues, classical. Almost no name brand rock though. I've subscribed for 3 months, and will continue for another year, at least...It fills a wonderful niche, has a great UI, and almost unlimited downloads...
2. Rhapsody: They are oh so close...If it weren't for the subscription price, this would be my favorite. I took the week free trial, paid for a bunch of songs at .79 a pop to fill holes in my library, then cancelled--no way I'll pay for something I don't need--the radio. I love their setup--.wav files; it's essentially the same as having the original CD, and I can rip it into any format I want. Yes, it's a slight hassle to have to burn first, then rip, but I've got an original CD quality copy that I can rip into any format, at any quality that I want--I love it!! It's as close to buying the original CD as you can get...I think this is the best model--people who don't get into mp3 can use it on a regular CD player; people who get into mp3 can rip it--they have two markets covered, if they'd get rid of the subscription price.....Someday someone will come up with this format WITHOUT the subscription price; I'll be all over it when that happens. Hint, Hint....(there are rumors that Rhapsody itself may do this, I hope so, the have a very nice catalogue...).
The Itunes music store is out for me at present, being a windows user. I can' t use AAC anywhere but on my ipod, unless I convert formats, which I'm not all that excited about...And I'd have to make a choice between MC9 and AAC if I use the store, so I'm hoping a non AAC, non WMA service, either .wav (preferably) or high quality mp3 will be available to me....