I like Shareaza better, and I used to like Morpheus. Limewire just always seemed slow and I didn't get a lot of results for what I was looking for, but to be fair, they may have updated it, it's been a while since I used it.
Also, I'm a big fan of D++ but you have to know what hubs to join.
I've never gotten bit torrents to work for myself, but I'm probably using them wrong. Seems like everytime I d/l one, I click it and it just links me to the file in Shareaza or something and tries to download.