different trucks?

[Can't kech me]

ok guys, i work in a service shop, and i was talking to one of the service techs, and he told me that the best truck out right now is the GMC sierra, cool, but when i said "and the chevy silverado" he said that they are different, same engines, but different frames and suspension and that the gmc was a better setup. I'm not stupid but i'm also not really NBS savvy, so some call or confirm this for me.