Here's my list of why it's better.

1. They hate each other.

2. Mai sometimes doesn't want to show feelings toward him.

3. Brandon and Stella are always on and off, Mai and Zuko are always on a off.

4. It's cute how Zuko calls Stella "Fashion fairy" and how Stella calls him "Zuzu".

5. I amor crossovers.

6. I dislike Mai.

7. I don't like how Brandon and Stella broke up in season 4.

8. Mai and Zuko aren't cute together.

9. Stella doesn't have a cute nickname for Brandon and Brandon doesn't have a cute nickname for Stella.

10. I like the couple name Stuko better than Maiko and Stendon.