Years that stand out for me. speaking strictly GM:
1957 Bel Air - culmination of the previous two successful model years. Best of the fins, timeless classic.
1961-62 Bubble tops, Impala or Bel Air. Best of the Late Greats.
1963 Corvette split window coupe. Generation change, revolutionary styling.
1966-67 Chevy II Novas - tough little cars, great lines, legendary L79 package.
1969 Camaro, coupe or convertible. Same as the 55-57 Bel Air's, refined evolutionary styling that still attracts people to it today,
Don't think I have blinders on, I like nearly all of the muscle cars, Fords and Mopars included. They represent a great time in the lives of my generation; I'm always glad that I was able to experience the last years of the car crazed 60's and the early 70's. Fond memories !
Regards,
Steve