I have used the following P2P's and here are my results:

Morpheus Basic & Pro: Hangs up all the time and you can't reload partials if you shutdown. PASS

SoulSeek: Very good for music but limited video files and DL's take forever and a day. They have a good host browser feature. PASS

KAZAA and all its demon evil versions: BAD BAD BAD. STAY AWAY - DO NOT GO INTO THE LIGHT.....

LimeWire Basic: Some small issues until you get your OPTIONS set best for your system and overall very good.

MY TWO CENTS FOR LIBRARY IMPROVEMENT IN LW:

You should be able to highlight your whole Library when you want to resume incomplete files rather than one by one. If you have thirty files that are partials and you reconnect or want to try again later, you have to highlight choices one at a time. This gets a little tedious.