My 'cross bike has campy chorus components with the compact double crank. My Bianchi also has campy while my other bikes have shimano. The campy components are so much nicer--easier, smoother shifting and when I have to trim, much more precise. Campy hoods/shifters/brake levers seem to fit my small hands better, too. Eventually, I will swap out the shimano components on my Luna Eclipse for campy. If you're going custom, I vote for campy.