To me RPGs are about the shared experience. We build a fantasy world together and get to live in that world for a short time. I love to tell epic stories while exploring the world and enjoy some dangerous action and combat all in one night.
I've been playing D&D since 1st Edition and DMing since 2nd. I'm focused on 5th Edition games currently.
I've also both played and GMed Star Wars (D6 and Saga), Vampire: the Masquerade, and Savage Worlds. I'm not really up to date on those though.