User blog comment:Sgt. S.S./Should I get Dawnguard or Dragonborn first?/@comment-3981749-20130416143758

If you want a good Storyline and interesting characters,plus a few small landscapes, go with Dawnguard.

if you would prefer to have a Large map and new Locations with lots more exploration, but less emphasis on story, go with Dragonborn.

personally, i prefer Dawnguard.