I'm mostly with Shad0w on this one. I love too many games. However, if you limit it to games I would actively love to play right now...
Nightfall - Easily my favorite deckbuilding game made. Unfortunately, it's strength is also a weakness. You really want a constant group for it so that people can get use to the drafting portion.
Sentinels of the Multiverse - It's tough for my wife and I to find games we can play together. I love cooperative, strategy board games. She likes more casual, friendly games (except Gloom, not friendly, but certainly casual). However, we both play Sentinels. I'm also not normally on board for cooperative games, but I love this one. Add on top of that their latest expansion, "Vengeance" is incredible and it's easy to see why this is one of my go to games.
King of Tokyo - I grew up playing Kismet (the knock-off Yahtzee) and so when I sat down to King of Tokyo and realized it was Kismet with giant monsters, I fell in love. It's easy to teach and quick to play.
Netrunner - The first time I was introduced to this game I was completely blown away by how amazing it was. I asked my friend who taught me where I could find it. His response, "Australia, cause they're the only place with boxes remaining. WOTC cut this game." I almost cried. So when FFG announced they were bringing the game back I jumped on it. Haven't regretted it.
X-Wing Miniatures - Anyone who's met me knows I'm a huge sucker for Minis games. I love this one because it's just simple enough to allow quick play and cinematic feel, while being deep enough to get the themes of Star Wars out and have tactical depth.
Malifaux - Last game I'm going to have on here is a traditional skirmish minis game. The world they've made for Malifaux is deep and involving, and it's characters are rich and varied. The randomization is all done with a traditional deck for 54 playing cards. I love this game, and I'm super excited to break out Kirai again!