Design, Stats, Shiny, one of the only two special third pokemon of the box art trios not to suck more than the other two. --- Sylveon is bada**! People who agree: 3 Official Shadow Zangoose of the X board and WF!
Giratina is a powerful defensive core (150/120/120 defenses), and his Ghost typing makes him immune to Rapid Spin, which was the only way to get rid of hazards in Gen V and before. Giratina-O is more offensive and has Levitate, making him immune to Ground moves as well.
He's no Lugia, but he's definitely not bad. --- PSN: GiroTheHero "I like my games like I like my women, digital." ~Javel34