I forgot something crucial about Tidus. If we are talking in terms of the power we see them in game then I forgot you can break the 9999 cap in FFX, so a totally pimped out Tidus would wipe the floor with all three of them combined. Oh my...coming from someone that dislikes Tidus that makes me cringe. In terms of just imagining this and that, and forgetting the base damage we see in game then I guess it's a matter of opinion and favorite character though.

X is the only one of these games that can break the 9999 standard I think.