what is the most Desirable A body line

The 68-69 Dart GTS and 68-69 Plymouth Barracuda Formula S would be my bet as what is most collectable long term. The HEMI SS versions of the 68 models made them even more iconic. Topping things off with M code 440 cars was epic. After 1969 we would never see another factory big block A body. IMO the high water mark for the A-mobiles.