Now isn't this what the shonen jump game in japan is for? Really, it would have to be Kira from death note. (see manga of the week in the manga section). You see, the fight could start, and all he needs to do is go to wikipedia and look up his nemisis, write it down, and then he's owned. I mean, out of 6 billion, goku couldn't instant transmition to him because he doesn't know his energy signal. Really, the power to kill by writing, < all.
it says STRONGEST bluntly.
That does not mean favorite. It means most raw power/ability.
the tops would probably be... oh....
1: Death note book owners
2: Z warriors
3: Tie between like, alucard, gundams, and so forth. Really alucard takes out whole battle ships like a gundam. Who knows? I bet he could easily take out any non sayain warriors, and probably take out anyone up to vegita and goku. I'd say as strong as vegita.