I've ridden a Campy Chorus group for years. I know they have a weight limit on their stuff, but I've never had a problem.
The Campy v. Shimano begins and ends with pure preference. Do you like chocolate ice cream or vanilla? If I like chocolate and you like vanilla so be it. The two things I prefered about Campy over Shimano are:
1. Multiple gear shifting in a single shift. 2. You don't touch the break when you shift.
For what it's worth I'm 100% SRAM these days. Love the brifters.
There is little doubt in the cycling world the mystique behind Campy is far greater than the mega corporate likes of Shimano. The fact of the matter is they both perform their given functions.