Resident Evil 5
The game is a lot of fun, even in single player. It greatly expands upon the combat of RE4 by introduce more variety in melee moves, including melees on grounded opponents. It seems the main complete is that it isn't "scary," but it can still be pretty tense with the overwhelming waves of enemies and some threatening mini-bosses.
Resident Evil 6
The latest numbered entry in the Resident Evil series adds an even more complex combat system, that despite having similar concepts, plays wholly different from RE4 and 5. The modern Resident Evil games emphasize melee moves in tandem with the shooting, making them play unlike any other third person shooter in the market. It's a really unique gameplay experience, and a lot of fun once you master it. Too bad the actual campaign is terrible. The game needed more focus.
Assassin's Creed 3
Similar to RE6, the campaign of AC3 is poor. Many of the missions aren't very fun, and often frustrating. I thought the combat was fun, though. The variety of weapons and unique attack animations created for the game were great at making the combat feel interesting, but unfortunately it was hindered by the awful inventory system, making creativity with the combat a hassle.
I also loved the world the game took place in. The frontier was a joy to explore, and swiftly running through the trees to pounce upon a red coat or bear was a lot of fun. The setting also really resonated me. I loved the idea of having the game take place during the American Revolution as this was history I was actually somewhat familiar with. It was really cool seeing these people you learned about in school reimagined in this Assassin/Templar conflict. I even liked the characters. Sure, Connor wasn't as charismatic as Ezio, but I still found his stubbornness and naivety interesting. Plus, all the charisma went to Haytham, who I thought was an awesome character, and I'm sad we probably will never revisit him.
Silent Hill: Shattered Memories
I thought this game was amazing and didn't know it was hated until I saw a large portion of the Silent Hill fandom pooping on it. I guess a lot of the hate came from the fact that people expected a remake of Silent Hill 1. I guess the "Shattered Memories" subtitle didn't hint strongly enough at what to expect. I thought this was a really interesting reimagining of the Silent Hill mythos, maybe even superior (I think anything to do with the "cult" in Silent Hill is kinda lame, but that's just me). It was neat adventure game oozing with atmosphere and unique storytelling. I will concede that the harsh separation of exploration and the chase sequences (which were a bother on the Wii, thanks to my misunderstanding of the motion controls) ruined the tension and horror aspects that the game could've had, but being the coward that I am, it made the game easier to get through to the end. Which is good, 'cause, man, that ending!