Great thread, thanks for sharing, OP.
Brought me back to my undergrad years when it was so easy to play tons of local multi, Some favorites among my friends included Gears of War (dragging all those 360s and TVs together for LAN, good times), Rock Band, Street Fighter 4, and Pac-Man VS... but honestly any game becomes so much more fun when you're in one place with a good group.
I get my multiplayer gaming fix from PC nowadays - we've got a bunch of regulars who sit in a Skype call and play Team Fortress 2, Payday 2, Killing Floor, etc. together. It's great, but I got the chance to play mostly Wii U games (Smash included, of course) with some of them a few weeks ago when they were visiting... and the energy and hype in-person just blows away what online interaction provides.