Many players (notably Sony ones) are unable to handle the "part of a 
compilation" tag that iTunes gives compilations. Sometimes you end up with 
a swollen artists list and only one or two tracks per artist.

It would be great if iTMW had a "no compilations" option that replaced the 
album artist of compilation tracks with the album name and altered the 
track name to "artist - track name". Of course, this should only happen to 
files on the phone/player and not in iTunes. I realize this would probably 
result in iTMW re-syncing all these files on every sync, but for me it 
would be worth the extra minutes.