Con-sided the best is Currie or JKS for front track bars, and I have no idea on the rear. Ones that most guys say stay away from are the ones that use a ball joint like the factory style (TRE). They wear out quicker and do not allow for the same amount of flex "so they say" . However it all comes down to how much you beat on it and being sure it is lubed often...
But a lot of people run the RE ones as well and they seem to do pretty good.
Don't forget to check with Jason are 4x4 Group buys, CLICK HERE