I have had close to 30 of them, mostly 67-76 year models.
The Duster was a great looking car for the entire run.
The Demon? I never really warmed up to the front end styling of the 70-72 Darts. The slotted taillights of the Demon are really great. The Demon and Dart Sport had front and rear wheel openings that don't match. The Dart Sports took the good looking Duster taillights and ruined them. Many don't like the pointed front end. I don't mind those. The 75-76 Duster looks better up front due to styling and how the same year Dart and Dart Sport had front bumpers almost designed for demolition derby usage.
I am not much of a fan of the early A. I wouldn't insult someone with one, I just don't like the styling.
The 67-69 Dart is the top of the heap for me. My first car was a 69 Dart 2 door. I currently have a 67 and will soon pick up a 69 FOUR DOOR !