Man this thread has been going for awhile, not sure if I ever contributed but will here
Challenger - 1970 RT 440 (which I have)
Cuda - 72-74 340 or 360 4 speed (which I have as well, 73 340 stroked to 416 with a 4 speed). I do like 70 Cudas specifically the AARs.
I was never enamored with Hemi E bodies, they are ok but just never did it for me same as the 71 Cudas, not my thing.