Forza Horizon 2 more than lived up to the hype. I've spent a ridiculous number of hours on it, and was still playing it last night. I expect to still be playing it in a year. It's the best arcade racer I've ever played, beating out PGR 2.
I don't know about hype, but Madden 15 is the first Madden that has kept me interested beyond a couple of weeks. I have a couple hundred hours into it already. Seriously, I've pretty much hated Madden ever since it transitioned to 3D. This version is getting played as much or more than NFL 2K5 back in the day.
Finally, Wolfenstein: The New Order is the old school shooter I've ben waiting for. It not only delivered on gameplay though, but somehow came up with the a fantastic story and characters I actually care about in a game shooting the crap out of Nazis. Great acton, great story, and great music. Just a great game.