What are some alternatives?
When comparing Bitford and Deluge, you can also consider the following products
PicoTorrent - PicoTorrent is designed to be a tiny, easy-to-use BitTorrent client with low memory usage.
qBittorrent - Lightweight and open source torrent client that runs on all major platforms.
dottorrent-gui - An advanced GUI torrent file creator with batch functionality, powered by PyQt and dottorrent.
Transmission - Transmission has the features you expect in a BitTorrent client: encryption, a web-based interface...
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
LibreTorrent - LibreTorrent is a Free as in Freedom torrent client for Android 4 and later, based on libtorrent.