Well, I've been playing Super Mario 3D Land, Half-Life 2, Civilization 3, Mario Party 9, Minecraft, and, when I'm in an odd mood, Team Fortress 2. All of them entertaining, though Civ 3 I'm having a hard time adjusting to mainly because I'm still learning about the whole turn based strategy(I'm more of a real time strategy person). My dad's more of the turn based strategy type though we have the same basic strategy in order to dominate the world.
As of a note, the most underrated game I've ever played is Rise of Nations: Rise of Legends. While I admit it's not the best RTS game I've ever played, it's often overlooked over the AoE series and the StarCraft series. Get it if you enjoy RTS games. It got a nation based off of clockwork technology, a nation based off of Arabian fantasy, and a nation based off of the Aztecs/Mayan
alien techomagic.