Campy zondas or shimano rs80?????

I have recently returned to cycling after many years and have decided to lash out on some new wheels. I am currently doing 100 to 140 Ks per week and am building up to a 3 day 400+ k charity ride next year. I can get the rs 80s and zondas for almost the same price , they are within a few grams of each other weight wise. The zondas look like they might be a little more aero , and the rs80s a bit lighter in the rim. Anyone have any experience with either wheel or suggestions ?