I love Sk8 The Infinity too! Not my first sports anime but definitely one I'll remember as it easily grew to be one of my favorites. Also watched it while it premiered and came out each week, felt special. Sports animes have always been entertaining in my opinion, I can never really get bored of it, unlike some adventure animes. Yuri on Ice was one of my first sports anime and I really loved it. I could really appreciate the smooth animation. Speaking of great animation, Haikyuu always gets me hyped up as a fellow volleyball player. Been experimenting with different anime genres such as crime and have been watching Paranoia Agent and Black Lagoon, been liking both of those too.