Hi, my name is Evan, and I'm new to the forums and to cycling. I'm trying to compare between two Cannondales, either a 2008 Six13 6 or a 2008 Caad9 5. I'm interested mostly in performance and durability. Comfort is not as a big a deal. I'm also about 6'2, 6'3 and 160 lbs. Which bike would be better for me?