From Halopedia, the Halo wiki
Will update in the future.
Star Wars, Marvel, DC, Monster Movies, Etc.
Defiance, "Adult" Cartoons (Rick and Morty, Robot Chicken, Etc), Etc
Rock, Metal, OSTs, Etc
Halo, Destiny, Bioshock, Fallout, The Elder Scrolls, Red Dead, System Shock, Dead Space, Starcraft, Titanfall, Call of Duty: Zombies, Zelda, Sonic, Mario, Lego, Etc
Pizza, Chicken, Etc
Pop, Energy Drinks, Tea, Etc
Final level in Reach, The High Charity Levels in 2, the streets of New Mombasa in ODST, and the end of 4 to name a few.
Don't have one, although I'm not a fan of the idea of Rampancy or that the Foreunners couldn't find a way to evolve into machines before disappearing.
My favorite halo games are CE, 2, ODST, and reach (although I like all of them).