MusicMatch Jukebox has been assimilated by Yahoo! and been replaced by the useless Yahoo! Music Jukebox. I was just about to sit down and do some major mp3 tagging to organize my collection and now I can't because YMJ doesn't even do tagging. What a rip-off.

So I'm now looking for a good program that is as good at looking up ID3 tags and album art as MMJB was. I have been experimenting with:

MediaMonkey: best interface so far, but often misses the mark on albums, forcing me to fix the tag manually anyway

AudioPhiler: couldn't figure out

MP3 Collector: can't play tracks

iTunes: fails to find album art too often

Winamp is also on my list to try.

Anyway, I would appreciate opinions on a program that looks up tags/artwork as well as MMJB. Imortant features I'd lke:

Locate correct ID3 info/art based on partially completed/messed up tag.
The ability to easily copy ID3 elements from one track to another (MMJB let me do this easily).
Tell the diff between art that has been saved in folder and art that has been attached to file (MMonkey seems to do this).