In no order at all (except the order that got thought of out of my head):
1. Shane. I can't have someone living pretty close to me (compared to some other people in BnB), that I shouldn't meet. Unless there's something he hasn't told us yet.
2.
Peter Chou3.
Frank O'Connor, president of 343 Industries, manages everything Halo. Since I'm a total fanboy, we'd meet and I'd ask him the most obscure questions from the Halo-verse. I'm sure he'd be able to answer them.
4.
Greg Bear, mind behind Halo: Cryptum.
5.
Martin O'Donnell, mind behind Bungie's music. Maybe we can get together and jam. Then we get into his Acura TL and take us to that restaurant he keeps annoyingly tweeting about, every 7 hours...
Alternate 6th: Joan Carr,
Gale Rault (to insult, then when she's not looking, assault.)