I've just tried qq launcher and it is great! Smooth and very pretty.
Zeam - not always but can be veeeeery laggy
GO Launcher EX - it is good but not smooth
QQ Launcher - smooth, pretty, nice lockscreen and themes. No vertical app drawer
EZ Launcher - quite interesting, I heve to try it, but there is no vertical app drawer
Stock Launcher - smooth, pretty, but... there's no vertical app drawer. When I'm in the drawer and go back to home screen then to drawer I'm always at first screen.