Oh, well if Azureus counted as a P2P I would choose it. I have a remote web interface setup, so no matter where I am I can go to [a website] and have near-complete control over Azureus.
I have it setup so when I am home from 5:30 to midnight using the internet, it automatically pauses all torrents, and then starts them back up at midnight.
if you setup your router or firewall correctly, they'll (torrents) use almost all of your bandwidth if you get a torrent with lots of seeders. many times, when i'm downloading a torrent, I can't load any webpages or anything else internet related because uTorrent is using all of my bandwidth.
Bit torrents arent reliable, unless u have lots of people downloading and sharing partial files, otherwise NO ONE ever keeps their bit torrentengine up to seed.