Season 2 had a better finale & better animation. That being said, I felt in terms of writing & consistency Season 1 is superior.
Characterization was consistent for the most part not to mention character focus & pacing. Even at Season 1's worst it didn't reach MMDW levels.
Not to mention how lopsided the focus episodes are compared to Season 1. Why is it that three supporting characters got more focus than most of the main cast?