I'm not sure i would bunch canyon in with planet x and the like. Planet x is good value at a certain price point but it is Chinese carbon, wheras bigger, non "shop" brands like Cannondale, Canyon, Scott, Merida etc. (possibly others people have mentioned that i'm not familiar with) tend to do a lot more testing on types of carbon, types of weave, mixes of fibre and resin and shaping of the frame. Not something you can really fuss about in an entry level carbon bike, but around £2000 i would start to expect it.
Just test ride as many as you can, make your own mind up![]()
I wouldn't have mentioned Planet X if Ribble hadn't been mentioned. Similar products, different side of the Pennines.