f course Gohan is stronger at the end of DBZ........ Gokou's dead! No, I don't really count him as strong, because he has to reach a certain point in anger/emotion to get there. Gokou could get to where he was at will.
To me, Gohan is like Misty's Psyduck... he has to get a headache before he does us any good. That, and he doesn't keep up his training when he gets older. He turns into a geek. If I wanted to see a geek, I'd look in the mirror..... I'm going to shut up now.
Misty: I choose you, Starme! Oh no, not you Gohan!
Gohan: Aiyiyi!