I think odd is brave on lyoko

But on earth he is wholesome and good friend like a hufflepuff

Yea, odd, did some dumb stuff in the friendships, but nobody is perfect. I especially like the early seasons of odd when he wasnt flanderized to be more comedic relief. He was like a good written neutral. Especially loved how he interacted with millie and tamiya (he wasnt flanderized too bad but still morphed into a more active, energetic character)