depends on the team. How u want to build your team. The main character can play different role in a team, such as support, dps, healer, etc. There is no way to just say 1 class is better than another.

Let's take an example, if we compare them in term of healer role, then water main is definitely better than wind main as a healer. On the other hand, still in term of support role, specifically for support role for sage naruto team, then wind main is better than water main as a supporter for naruto because she has the 40% buff for wind attribute ninja.

So in conclusion, it depends on how you build your team, what ninjas u want to include in your team to decide which main is a better suit than other.

Hope this answer your question