Arguably one of the best games I've ever played. Open world, free to level up your character as you wish, interesting quests, being able to buy and build houses (with hearthfire) and of course slaying dragons. Who doesn't like killing flying lizards?
I would definitely recommend this game. Simply one of the best rpgs out there. Too bad there is no multiplayer option and combat feels rather clunky at times but the multitude of things you could do in Skyrim easily offset those.