If Gio was a video game character, he'd be the Paladin from Diablo 2. Elevates anyone who's playing with him (especially his defence partner), is very good at defending but can also contribute offensively. I don't think he can take over a game like a prime Karlsson can/could, but that's not why he's in the discussion. He's just a real solid player, plus more.
That videogame character creation comment had me ded!
As for the Norris discussion, if he keeps it up and stays healthy, he has a good chance. Last time he was in the discussion, he wasn't snubbed; he just got hurt. And the league is so good now, that this makes a huge difference.