I'm more or less hooked on Warframe right now. It's basically a free-to-play third person shooter MMO-thing with a heavy focus on melee attacks and parkour. Kind of like Destiny but it's FREE. Gameplay is very fast and fluid if you know what you're doing. I love grinding and getting that loot up. Haven't spent a dime yet, which is a very good thing. Plus it runs pretty smoothly on my laptop. Maybe I'll drop some cash on this eventually but I'm having a ton of fun as is.
When I'm not playing Warframe though, I'm playing Splatoon because OH MAN is that game addictive. Nintendo needs to start pumping out more IPs like this and I'll never leave their side. I love grinding up my gear and what-not and assembling fresh ass outfits for my inkling to dominate in.
When friends come over we play Smash 4 on my Wii U. There still isn't much like getting a bunch of buds on a couch and playing this together.