Never liked the rest of the different torrents, I use uTorrent and switch off the ads (google it there are simple ways to do it
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I tried tixati and didn't really like the UI
qbittorrent was fine but I guess I just gotten used to uTorrent's UI and settings that I felt the placements of all the buttons and such for it was also not really fantastic.
Of course we all have heard about the different times that uTorrent has tried and tried again to bundle software with it, and how the users have repeatedly asked them to stop it. But it's understandable because they have to make a living somehow, and bundling other "software" is a very good way of doing so. What I liked about it is that if you go through an update process it's entirely automated meaning that it will install the update itself without any other prompts, meaning that there is no other PUP installation that is going on, or at least none that I could find.
Therefore I have to stand by uTorrent, once you get through the first installation, the rest of the updates are going to be easy and there are ways of switching off the ads with just a click of a button (seriously google it), and the best is that the torrents go really quick for me, not entirely sure if there is a special algorithm that helps but it was faster than the rest I have tried.