Lontony
The most comfortable client to use
Rusherhack is the most comfortable client to use. There are many clients with module profiles, friend manager and such features, but rusherhack is the only client where you can use these features without typing commands in chat, you can just press "~" (even in main menu) and do anything you want in opened windows. There is even a console like in garry's mod, which is very helpful if you did some crap with modules and minecraft server kicks you faster than you turn off the module that causes the kick. Modules and hud are very customizable. Support responds very fast.