Azureus and uTorrent are both good, Azureus is a bit resource heavy, while uTorrent drains few resources, i use uTorrent and it's never given me any problems, always HTTP speed when downloading something with a good Seed/Leech ratio.
PSP, all the way from 1.00 to 5.50 GEN D2 - DS Lite w/ M3DS Real (M3 Sakura v1.34)
PS3 3.01 - iPod Touch 2G 16GB Jailbroken - Xbox 360 60GB - PC, Q6600, 3GB DDR2, GTX260 (216) 896MB
Not an option, that's just a phrase to denote how fast torrents download - it's basically another way of saying that they download as fast as your connection can allow.
PSP, all the way from 1.00 to 5.50 GEN D2 - DS Lite w/ M3DS Real (M3 Sakura v1.34)
PS3 3.01 - iPod Touch 2G 16GB Jailbroken - Xbox 360 60GB - PC, Q6600, 3GB DDR2, GTX260 (216) 896MB
PSP, all the way from 1.00 to 5.50 GEN D2 - DS Lite w/ M3DS Real (M3 Sakura v1.34)
PS3 3.01 - iPod Touch 2G 16GB Jailbroken - Xbox 360 60GB - PC, Q6600, 3GB DDR2, GTX260 (216) 896MB
Although Azureus is my preferred client, its memory use is more than uTorrent (7,000), Bittorrent 5.x (12,000) or Bitcomet (25,000).
For those with limited RAM, that can be an issue.
The options and plugins for Azureus are what make it stand out from the others IMO.
Plus I download a great deal of media from the Vuze portion and the speeds there are at max.