Who wins?
Free! vs Kuroko's Basketball
Kuroko's Basketball wins 70% to 30%. 14 more put them in the same row. From Sports Anime Tier List. Pick a side.
TheMoose on Free!: the swimming animation by Kyoto Animation is gorgeous even if the show is mostly about friendship
throwaway82563 on Kuroko's Basketball: basketball with superpowers, ridiculous but fun
Sports Anime Tier List: the full ranking