One thing I didn't like about Deluge is the lack of some of the more basic features, labels being the main thing. Granted, there is a plugin for labels, they lack some of the simplicity of labels being built-in. Plus the development seems to have slowed to a crawl, the last update for Deluge was nearly a year ago (stable release, that is), which, while not necessarily bad, there are plenty of improvements that could have been made since, but haven't.
just installed that yesterday and am giving it a try, it's pretty good so far but i'll give it a week or two to decide if i like it better than utorrent
being able to use the webui with https is a plus