so i noticed 3 diffrent sway bars for a revo, which one

i'm looking for a sway bar for my revo conversion and there seem to be 3 the traxxas, tekno, and bluegroove, is there any real difference?
from what i can tell the traxxas and tecno are the same, and bluegroove is very diffrent
or is there another thread that explains all this
i'm looking for eas of use and reliability

thanks