Dart vs. Valiant

Beauty is in the eye of the beholder, therefore:

1963 to 1965: Dart
1966: Valiant
1967 to 1969: Dart
1970: Valiant Duster
1971 to 1972: Dart Demon
1973 - 1976: Duster

...in 1971 - as performance minded buyer - maybe I would prefer the 340 Duster...