1. Vegeta - because he's an asshole prince with ambition and dreams of power but decided to settle with chichi anyway, have a kid and be happy and content with a simple life. 2. Gohan - he's gonna surpass Goku someday. 3. Goku - the father I never had.
Mine would be vegeta, trunks, broli, gohan, in that order. Admittedly I'm not that familiar with their lore or timeline but I just like the way they look as well as the surface personality they have.
I like the old man What is his name? I should know as i used to work with Ken who was the voice actor for that character.
How about none. The whole franchise is of low quality with cheesy unbelievable story lines and character interactions.