I love the Campy vs Shimano debate. The last bike I built was my one and only with Shimano shifters. I just swapped them to Campy because I hated the curve of the Shimano. It all comes down to what fits and is comfy.

A note - if you want the low mtb gearing of Shimano but with Campy levers, a Jtek Shiftmate makes the mutt system work really, really well.