I am in a heated discussion with Ram hater. He says my actual payload is lower than what the door sticker says. I think that it is mainly because mine is higher than his Chevy. My sticker says not...
The only way your going to know which truck is tougher is to load each one to the point that something breaks. Start with your friend's Chevy keeping track of how much weight you are putting on its back. When it breaks concede that the Chevy is indeed tougher ... end of argument.