interesting topic. I'm surprised nobody has mentioned MacAmp Lite X. (
http://www.macamplite.com/)
After having tried almost all progs mentioned in this topic since my switch to Mac 2 years ago, I actually found MacAmp working quite well, although it is kind of old and dead it works fine for me (MacBook Pro 2009 Snow Leopard). Still lacks a lot, but it has gained a place in my usable list of music players on the Mac
next to Vox
I like how the player looks neat and undisturbing in the corner of your screen, and that you're able to use the playlist feature again (same like Cog actually). Also nice is FastForwarding music like the way your tapedeck used to do that ;-) I find this very handy as I scan DJ sets a lot for interesting tracks I hunt down and try to ID. It doens't make you click so much all the time in the player which is very annoying...
I generally mostly use Vox, although I do miss some features there too, so MacAmp Lite X gives me a bit added feature.
As for all music players I've used so far.... I still miss proper keyboard support though.. Still can't believe this is such an issue on Mac, disappoints me really.
On Windows I used Winamp for ages and just used the spacebar to scan long DJ sets, a lot more comfortable!
I only use iTunes to organize my library despite the fact that I sincerely hate it too
I remember someone mentioning about the annoyance of not being able to play their music without organizing it. I agree, I used to have that too, but once you see the benefits of organizing your library it makes you wanna re-organize everything and get that nice organized eye-candy-ish look with all your albums properly tagged and added with album illustrations in iTunes
When you have an iPhone it makes the experience so much better on your iPhone too as I before just could never find tracks as they were all over the place....
I can recommend using EasyTAG for that. I did a lot of research and trying on that too as there are more alternatives but EasyTAG does the file renaming job too. Takes some practice to get it right but once you've got it it's easy, you can go through your library really quick. Don't use iTunes for that, it's slow and doesn't give you as much overview in my opinion.
Cheers