S-WORKS = CLX
Pro = CL

Main difference is the hub, and spokes.

I've no experience with the new CLX 3, but I'm no fan of the shallower rear wheel. I get that it's mainly for weight saving, but I think it looks odd. I like my current CL 2 that came with my 24' Pro. After 15 000km, I can say that they're stiff, not too shaky with crosswinds and reliable. I may have an opportunity to trade them for CLX 2s and I am considering it, mainly to get the Roval hubs with DT 180 internals (ceramic bearings!).