I don't think it matters
I don't think it matters which car you pick, Mustang or Camaro, the performance will be basically the same, it will all come down to preference of brand and styling. The Challenger on the otherhand is a different type of vehicle. It is more like a fullsize muscle car like a Gran Torino or Chevelle from back in the day. Either way you go, you will have a fun fast car, that is will be fun at the strip and the track, but just like how most 4X4s will never see off road, the majority of these car sold will just be used for commuting, with the occasional full throttle launch or burn out here and there.