Im a bit late to this video, but between these two I pick the Camaro Z/28. I might be a little biased as the '69 Camaro is my all time favorite, and that I also ended up purchasing this lego icons version of it, but with that being said I do still genuinely feel that the Camaro is the better model of the two. To me, the exterior of the Camaro is slightly more accurate to the real car, it captures most of the key lines, shapes, and elements quite well. Despite using a decent amount of curved/sloped pieces, the Corvette still feels a little too flat/blocky considering how rounded off the real car is.
I still more like 10295 Porsche 911 set with stickerless concept, but Chevrolet is my favorite american car brand. So i buy them both, tomorrow!) Thanks!!! And i hope LEGO soon or later will release Pontiac GTO 1966 in ICONS format.