PS4=Vegeta: Just looking for raw potential, focus on fight. Hard training to be at the same power level of Goku (sometimes he is), but at the end of the day he is just behind. His father was the king of the planet.
PC=Goku: Fighting since he was born, always ready to help the humanity. He has died several times, and resurrected as well, always at the top. His father in law is a "good-natured" bearded man.
3).
XB1=Gohan: Was very powerful in his first years, now he wears weird clothes and uses dumb gadgets. (according to the prophecy from an old guy) he has inside some secret unlimited power.
Wii-U=Mr.Satan/Hercule: Scared from the rest of the fighters, although he usually try to show the opposite (confidence in himself), underpowered. Almost everybody trust him and enjoyed his past background, thanks to that, he will save humanity with the help of Goku and Vegeta.