Name a better boxing anime than ashito no Joe
I always liked Rose of Versailles more but Ashita no Joe 2 is a very close second to being the best anime.
Episode 1-55 on S1 might even be better than S2
My only reason I don't watch the first season is because of the shitty quality DVD rips. I'm used to watching old anime in BD, like RoV or other Dezaki shows, so that's a huge turnoff for me. That's why I only watched the second season.