If they were the same price, I would get the Bottecchia. That is some better Campy stuff on that bike. Those look like 8-speed downtube shifters, which get some bucks. Being bikeforums and all, the correct answer is to get both. Keep what you want and offset it with what you don't.
__________________
#GCVintageBicycles for pics of C&V bikes and parts.