I was a HUGE fan of the 80's series. I don't have any of the fanart I did of it anymore though. That was before I started keeping sketchbooks. Um, Rocksteady was my favorite character. I'm so predictable.
When we went to go visit my mom's family in New York the summer I was 12 (the biggest year of my TMNT fandom), my wee little cousin was totally in love with TMNT so I became his best friend. We played Turtles for like, 2 weeks solid. I was Donatello. In fact when he left he said "I love you, Donatello" to me because he didn't even know my real name.
I gave the movies a miss despite my fandom because I just...preferred them animated. And I have never even seen the 2003 series. I still don't know if I'm going to bother with the new movie. I'll likely just wait until it comes to TV, to be honest.