http://portableapps.com/apps/internet/utorrent_portable http://portableapps.com/apps/internet/qbittorrent_portable
I still use uTorrent Portbale, never had problems with toolbar installers or hijackers yet.
Imagine if everyone were using gshare and the company decided everyone had to use gshare+ and all the data was dependent on their servers/network. Good luck trying to keep an older version or trying an alternative after one company dominated the majority of the market.
(Although I personally prefer qBittorrent: http://www.qbittorrent.org)
Works pretty well on Windows.
You can use a remote connection to connect to uTorrent but it goes through uTorrent's server for authentication if my memory serves me well.
uTorrent... I had to stop using uTorrent because it just stopped working. All torrents failed before they really started. I don't remember the error but I installed Tixati, which is also very functional (but now I have no Windows machine that I want to use for any torrent-related things anymore).
Deluge - http://deluge-torrent.org/
Tixati - http://www.tixati.com/
qBittorrent - http://www.qbittorrent.org/
Windows users can turn to Free Download Manager[1]. It's open source (GPL)[2] and just works like uTorrent does. It supports HTTP, FTP, BitTorrent, audio/video preview, partial ZIP downloads, rate limiting, download scheduling, download from multiple mirrors and Chrome/IE/Firefox/Clipboard integration. Plus it "looks native."
I have been using it for years and have never gone wrong - it's extremely fast and because it's FOSS it is obviously ad/spyware/searchware free.
Edit: I am not affiliated with these guys in any way - just a happy user.
[1]: http://freedownloadmanager.org/ [2]: http://www.sourceforge.net/projects/freedownload
There was a case where the application started downloading some strange 5GB file that users did not add: http://forum.utorrent.com/viewtopic.php?pid=728504
Other times it threw open a window from the application to a webpage with shady screensaver installers.
Using a closed-source torrent client in this climate is dangerous.
But, there are a lot of other torrent clients listed here, I will be trying some of these out :)
Recently i lost my htpc so i looked for one client for the tablet.
Of the dozen available, one supported 'only encrypted' mode. One/12
While it does not have all of the features of more heavy torrent clients, it does have a plugin system - although not many plugins exist yet. It's cross-platform, open source, and pretty light. The author has good priorities and is conscious about issues such as privacy, and having good installers that aren't bundled with questionable content.
Ubuntu/Linux support too which is always nice to see!
Anecdotally, I had occasion to fire up a torrent client and grabbed uTorrent, what I used some time ago and found to be a good client. I was shocked to see how it had turned into crapware. It felt like sleazy garbage and I actually worried I'd inadvertently installed spyware on my machine.