Come on lets face it, the probably meanest front end of a Muscle car is 1970 Challenger, 1970 Cuda come in 2nd place, and talking about mean ends look at the rear end of a 1970 Challenger that so many musclecar owners are very familiar with.
Also I agree the overall design of the Challenger is more impressive than the Cudas, a few hints: Twin hoods are meaner, door panels are better looking, longer wheelbase, etc.
The cuda has one thing that is better than Challenger, that is th legend story, everybody seem to know the phrase "hemicuda" and therefore we see all these clones and even basketcase cudas go for insane amount of money. When you look at the numbers of production of performance vehicles within Cudas and Challengers, Challengers are often not as many. That fact should bring higher value of Challengers.
In my opinion its only a matter of time when 1970-1 Challenger R/T´s will be sitting beside Cudas in the value rank, we just have to be patient.