Aegis said:All we know about the Mario brothers is that they fell into their toilets, landed into the Mushroom Kingdom, saved the Princess from an evil Koopa named Bowser, and that's pretty much it. And all of the other supporting characters that Mario encounters are just there. No origin stories, no unique personalities, not a great way to argue over which "characters are better" because none of them truly shine as groundbreaking characters.
Yea well you got me there, but still using generic enemies and characters like Koopas and Penguins as playable characters is dumb. At least we have some knowledge of who the others are like, Peach is sweet and feminin, Daisy loves excitement and sports, Wario is wicked and fat, then we have Koopa and others that give no hint on what they are like. They cheer when others cheer and are sad when others are sad. Like what is Blooper like? Is he a baddie like Wario? is it even male? So at least the others bring something and we know who they are and what they act like. They have some sliver of personality to bring.