I used to have Morpheus and it is a piece of ****. Before that i had iMesh--WOW= some of the best stuff ever. Than i got KaZaa, it great, i still have it even though i got limewire. limewire isn't of such a high quality but the choices are good. My ratings are below:

iMesh - (B+) Pluses-great softwere, easy to use. Minuses-makes weak machines freeze (About 800Mgz and bellow)

Napster-(D-) WEAK, CHEAP, it was the father of all p2ps.

Morpheus-(C) UGLY LIKE MY ***

KaZaa1.5+-(A-)Its good, sometimes can get anoying, good choice.

KaZaa1.5 below-(B+) nice, the patch makes it better

BearShare-(C) Boooooooooooo!!!!!!!!

Limewire2.0+-(B) Nice selection of files, Imac looks--FLASHY

Limewire2.0 below-(C+) ehh, what you gonna do?