Welcome to the forums Tylerbulger. Have a http://t1.gstatic.com/images?q=tbn:ANd9GcRrb6tVqMao8Nx_-pkgLmOHgAFtC3_dp_ikhrqA70v2JBB5IUkO! As to your post... Maybe? There are a lot of great games, but Skyrim is one of the best. Dawnguard seems like it will add a lot more gameplay to the original game.
It's a fun game, but it's hardly somthing new, yet alone worthy of legendary status. Legendary games are decided upon by history, while Skyrim is barley half a year old.
http://t1.gstatic.com/images?q=tbn:ANd9GcRrb6tVqMao8Nx_-pkgLmOHgAFtC3_dp_ikhrqA70v2JBB5IUkO! And I agree with you. I like the feel of this DLC. At least they aren't doing a vampire vs. werewolves thing. It's more like Van Helsing.