great question.
without a doubt i'd live in deus ex: human revolution. love the futuristic, cyberpunk setting. i'd imagine stayin in detroit moving neuropozyne for the MCB out of a ghetto apartment.
someone made videos of the architecture in the game @ https://www.youtube.com/playlist?list=PLD7519BFFBCE668B2
if this game were more open-worldy i'd agree but movement was far too limited.
my pick would have to be Vampire: The Masquerade Redemption. It's pretty dated by today's standards but the diversity of locales is insane, the story and characters are incredibly compelling and little things like music, sounds, narration and cutscenes were perfect in supporting a haunting atmosphere where you feel in danger at every moment. Deus Ex has never made me want to be a cyborg, nor have any Star Wars made me want to be a jedi anywhere near to the intensity that this game made me want to be a vampiric Crusader %)