Wondering what BitTorrent software you are using? If you're happy with it? Why or why not?

I've been using utorrent since forever, but lately it has been getting on my nerves. Whenever I add a new torrent, it usually won't start downloading. Even after a long wait (speaking hours here). So I first have to close utorrent, wait for it to actually close (keeps running in processes for another 15 secs or so). Then run utorrent again. Then the new torrent will usually work. It's not a particularly new problem either. Had it for years, but never bothered me that much before.

Anyone got decent software alternatives or even a way to fix this issues?

Danke.