Early A-body vs Later A-body

Can't really explain it, I had a 68 Dart GT vert for 10 years, great car but sold last summer. Picked up a 64 Valiant vert a couple of years ago while I still had 68, had for just over a year then sold. After selling my 68 went thru a 63 Fury vert, sold that then found a 65 Dart GT vert that I'm now updating this winter. My one son looked at 65 Dart and asked what was I thinking? Something about the 64 Valiant & 65 Dart that are just a little bit quirky & odd. What else can I say........... :)