Dragon Ball Z

[Sephiroth]

I already watched Battle of Gods in Japanese.

I'm debateably the biggest DBZ fan on this forum...

And Gohan is my favorite.

For some reason I doubt that.

But, since we're only including canon, I'll have to go w/ Vegeta.

Dragon Ball has no canonicity. Both Akira Toriyama and Studio Toei never cared about defining canonicity in terms of "this was specifically made to be an additional part to the world that counts" or made it obvious in an unequivocal way. The only things in Dragon Ball that don't happen and are still official are some of the movies which have been declared "a different world" (the only canonicity answer that has ever been given) and obvious things like Dragon Ball Heroes which is a story from a card game. The canon argument is just a fanboy creation and in Dragon Ball it is one of the worst.

However you are talking about DBZA, so I understand what you mean.