As Peter Petrelli on Heroes, Milo Ventimiglia has the ability to mimic the extraordinary strengths of his counterparts, unlike his Gilmore Girls character Jess Mariano who, by all accounts, lacked superpowers. Unless, of course, we're counting mind games. Or the ability to make millions of teen girls swoon. When bad-boy Jess got to Stars Hollow, he didn't just steal Rory's heart — he later dated co-star Alexis Bledel in real life. Though he's infamous in some circles, he remains a favorite Rory ex — living on in fan sites dedicated to the memories of Rory and Jess' heated relationship.