The CK is more curvacious, and I like both a lot.
I like the CH just a bit more because it has Motorsport engraved in it. If the CK had that then I'd probably rep those instead, so they're pretty darn close and is a hard choice to make.
Yes, as Dane said, they will survive a pounding (most likely). I've gone through some terrible roads in NYC at speed with the BBS wheels and they haven't bent yet, and I only have 245/35 tires with them. I'm thoroughly impressed.