µTorrent

uTorrent is an efficient BitTorrent client for Windows for several reasons: it's fast, lightweight, easy to use and very efficient. 

uTorrent Features: 

Micro-Sized Yet Feature Filled – Most of the features present in other BitTorrent clients are present in uTorrent, including bandwidth prioritization, scheduling, RSS auto-downloading and Mainline DHT (compatible with BitComet). Additionally, uTorrent supports the Protocol Encryption joint specification (compatible with Azureus 2.4.0.0, and now BitComet 0.63) and peer exchange. 

Resource-Friendly – uTorrent was written with efficiency in mind. Unlike many torrent clients, uTorrent