I'll throw you another option I haven't heard yet. Have you looked at Zone offroad? It's a sister company to BDS, no they aren't rebadged BDS springs, but are manufactured with a similar design quality.
I installed 4 of their 4" leafs a few thousand miles ago, I have been very happy with the quality of the ride both on and off road, they flex very well and ride smooth, at least for a YJ. I picked up 4 leafs and bushings for under $400 shipped direct from zones website. The emails I sent prior to my purchase were answered promptly, I have been very happy.
If you are set on the two choices listed in your title, then go BDS all the way. But i would encourage you to take a look at zone before you even think about RC or even Pro Comp.