Bittorrent Client

What do you think of the current versions of the Bittorrent client versus the rest of the famos clients out there, talking especially about uTorrent which has much of the same code base, and a little less about Azureus, Bitcomet or other clients you might like.
Actually concerning the generic nature of the thread's title, let's make it a pros and cons for different clients, but try to stay clear and concise.


[*] There might be a similar thread about this but search is not a viable option in this instance and this might be in the wrong place, so any modifications to this thread by mods are welcomed.

I thought BT = uT with different name and peer_id? In that case, "much of the same code base" may be an understatement.