Again, their two fan theories and as I said one is racist as it deals in Social Darwinism and the other doesn't a whole lot.
Vegeta always got on my nerves because he was either whining about something or acting like a brat, and just overall being annoying. I agree he does progressively change, but he still got on my nerves. I hate Goku just like how I hate Superman way too OP and some more things.
My favorite "human" as I mentioned is Bardock and I wished they did more with him because of the guy basically started a revolution, stood up to Frezia, said fuck you, and then fought to the end. I know, Freiza just one shots him and his people, but the man had guts and everything. He was a hero, unlike Goku who acts like a child all the damn time. As far as characters go, my favorite is Piccolo as I think he is underused a lot and wasn't given anything that cool.