My $0.02 is that cockpit adjustability should also rank super highly. How the bike does in the tunnel is small compared with how your body sits on the bike, and you just will never get in a good position if it takes 30mins to adjust the cockpit every time. The new Cervelo's are pretty good (I have only a little experience with them though). The Canyon kind of sucks -- I would ebay the front end and go TriRig. The Trek is obviously very old now but is pretty good and a great used option (betting they finally update it this coming year). That or a used P5 with TriRig front end might be the best price/performance option. Personally if I were in the market today I would go P5d for new, or used Trek or P5/Tririg. You can also get great deals on used rim brake race wheels.

Edit: when I posted the above I didn't know about the new Canyon front end, which looks decent but I'd have to see it in person to be sure.