Out of the three Catwomen, Julie Newmar, Lee Meriwether, and Eartha kitt, Julie Newmar was definitely my favorite although all three were very beautiful.
Yvonne Craig as Batgirl was also a huge turn on but it was Marsha that really rocked my world. There was this episode where she does this really seductive dance. I remember getting totally worked up watching it.
I had no idea what it was at the time but it sure made an impression. I was hooked on glamorous older women after that. (The opera helped with that too but that's another story.)
I never really pictured Robin as a femboy and while femboys aren't really my thing if you have any pictures of tgirls dressed as Robin I'd love to see them! The electric chair fantasy was hot.