What Makes A Good Main Character Design Anyway?

Sometimes I see online discourse and I don't think people on either side are really talking about the part of the story that matters. Why do some main character designs rule and why are some boring? Let's break that down.

Check me out on X: @Landon_Core

Intro 00:00
Visual Appeal 04:07
Personality and World-Building 07:16
Gameplay Incorporated 11:30
Samus As An Example 15:10
Wrap Up 18:05