While I was away in China for the past decade, American car manufacturers started to make these retro muscle cars, and I actually don't hate them. I don't think I'd ever buy one, but they look surprisingly good. I might rent one of each for a day, assuming I can find them locally, and give them a spin.
The Dodge Challenger is the ugliest of the bunch, thus it appeals to me the most:
The Chevy website is sort of broken and hard to navigate, and the pictures are not good ... none of this inspires confidence. Nevertheless I was able to find this picture of the Camaro Z/28. It looks like a Nissan rice rocket to me, you know, the GT-R, or 350Z or whatever. It's all-American characteristics are not distinctive enough for me.
Lastly we have the Ford Mustang ... again, from this side view this GT looks like a Nissan to me ... boring. But from other angles it looks a bit better, more distinctive -- it has great tail lights, for instance. Nevertheless, on the basis of style alone, the Dodge Challenger is the clear winner, in my eyes.
Final look at the Challenger in red, no striping: