Depends what part of the US you are in. Here in the north east, Chevys snd GMCs rule, Ford is 2nd and Ram is in 3rd. In the Southwest, I believe Ram is most popular, then Ford with Chevy/GMC less popular. HP wise, I think the Chevy/GMC puts out more torque/HP (Duramax) than Ford or Ram. I haven't been following the truck stats since they flew past $75K a few years ago. The Rams seem to be spec'd for more hauling/load capacity IIRC. I have an older GMC 2500 Duramax with tuner, love the HP and torque ... no DEF (2007 Classic model) and the DIC says I'm getting 24MPG highway in the summer. As far as this meme, it's more to do with the Challenger and Hellcat engines I think.