I just bought a new Cannondale this weekend and looked at both of the other bikes you are talking about. The Tarmac was a bit of a rough ride for me and more race oriented. The Pinarello is a gorgeous bike and I might have bought it but I got totally ignored at the shop. The crew at the Cannondale shop were great and I love the bike. Ended up with a 2016 Evo HiMod Dura Ace. Good luck with the shopping.