Until Dawn is definitely a nice surprise. Despite not being marketed as a huge exclusive like Uncharted or God of War, it's arguably the best one available on PlayStation 4 with the exception of Bloodborne; if you like horror/thriller movies and you don't mind Quick Time Events, you're definitely in for a treat.
Metal Gear Solid V: The Phantom Pain is a gameplay triumph, that's for sure. Kojima managed to marry the stealth/action elements of MGS with the open world setting in a way that no one could have predicted. While not perfect, this is a masterpiece that everyone should enjoy; let's just hope it's not the last we'll see of Snake.
FIFA 16 reacted extremely well to the increasing challenge posed by Konami with PES. This year's edition fixes all the shortcomings of FIFA 15 while introducing more features and authenticity to the game; in short, FIFA 16 is still the king of football games, at least for another year.
Uncharted: The Nathan Drake Collection might not be that appealing for those who played the Uncharted trilogy on PlayStation 3, but for everyone else it's simply a must buy, particularly if you plan to get Uncharted 4 as well next year.
Warhammer: End Times Vermintide is a new take on the Left 4 Dead formula. It brings enhanced combat (particularly melee) and some RPG elements, but it loses the PvP aspect and user generated content, both critical to longevity in this genre. Still, if you have a group of friends this game can definitely provide lots of fun.
Fallout 4 is one of the best games I've played this year. It's not the best and not even the best RPG (which in this case is the same thing) due to some missteps detailed in the review, but this shouldn't deter you from an experience that will be worth it for any fans of the genre and setting. Moreover, this is just the beginning: we'll hear a lot more of Fallout 4 in the coming years thanks to DLCs and mods that will likely bring the game to a whole new level. The Commonwealth gates have just opened and few will be able to resist entering.
Dragon's Dogma is a great action RPG, especially as a first entry in the franchise. CAPCOM successfully married the Western open world RPG with an awesome combat system and a bit of Japanese flavor; if you haven't played it until now, the PC version offers enhanced graphics and frame rate. I, for one, hope to learn about a sequel very soon.
As with most (if not all) expansions, Dying Light: The Following probably won't win over those who didn't enjoy the original game. At the same time, it offers a lot of fun and a few shiny new toys (such as the buggy) to everyone else who greatly appreciated Dying Light, and it does so with great value thanks to a strong longevity for its price. Unless you really dislike zombies, The Following is a worthy purchase.
Homefront: The Revolution is a disappointment no matter how you slice it. Maybe Deep Silver Dambuster can improve it over time and when that happens, the game could be worth a purchase in a sale; as it is, though, it simply cannot be recommended with many better options available for gamers.