ive had bad experiences with azureus. after leaving it on for more than 12 hours, all IP ports were used up, and I crashed on a regular basis. The problem has not happened since I started using uTorrent.
Also, with Azureus, when I went to the latest version (Vuze i think?) then it was no longer just a torrent client, but it started pushing media on me I didn’t want with that horrid first screen, and I had to figure out how to actually get to my torrent screen.
Plus its written in Java, and we all know Java desktop apps are eeeevil.