What do you think the best thing about Giratina is. Is it that he lives in a reverse world opposite the Pokemon world or is it his cry or looks. It can be anything.
Giratina is Satan. I worship Satan, so as such, I worship Giratina alongside Satan.
I like...his Origin Forme, his cry, his signature move, his well-rounded Altered Forme stats...
He's just an all-around awesome legendary.