From Halopedia, the Halo wiki
Any action movies or collagecomedy movies like American Pie.
Simpsons, Family Guy, 2 and a half men, Jackass, Nitro Circus, XGAMES or anything with extreme sports.
Metallica, Deadmau5, Daft Punk, Rage Against the Machines and any kind off r'n'b and old school rap.
The Halo Books, The Metro Books. Any book that is kinda "scary" or a horror book! :)
All Halo games <3 Except Halo: Wars. Worst FUCKING game ever. Call of Duty, any Tom Clansy game.
Most gamingmagazines :)
Coke, Mt Dew, Red Bull, Rockstar Energy, Monster Energy.
My favorite Halo Moment? Woah, it's a really hard question but it have to be the ending off Halo: Combat Evolved. Literally gave me goosebumps.
I don't know. I didn't really like Halo: ODST. I mean it was a really good game but it didn't really feel like Halo to me.