Tidus.
I picked up 10 after playing games like Skies of Arcadia and Tales of Symphonia, where the main characters (Vyse and Lloyd) are awesome in every way. If 10 would've been about some quiet kid who wants to be a sky pirate, I probably wouldn't even be posting in this topic. Square did such a good job on Tidus, because when I think about being in his situation, I would've acted exactly like him.