[Iceman]

I think what you are noticing is just improvements in technology and styling really. In the 70's and 80's all animation was done in simpler shapes because it was done by hand and now with computer animation things just look better. Fine details that would make someone "attractive" weren't what they are today. Just how we see lots of animation that is more realistic and detailed. Cheetara was a cat so there was that part of it but I've heard people say they had crushes on her as a kid.

Even still, there were animated women that were drawn to be sexy such as Fujiko from Lupin III. And comics have been notorious for drawing women in idealized ways and revealing costumes. That's going back decades but maybe it wasn't spreading into children's cartoons so much back then. The Japanese influence has helped shape the way our cartoons get animated over the years.

On the original question I can't think of anyone but I was born mid-eighties so it was Transformers, G.I. Joe, etc and there weren't too many women in those. Also, I wasn't really paying attention to the girls as I they all had cooties.