Things i like from Dawnguard:
- The dungeons are really dark and i like them more than vanilla Skyrim. It was the first time when i had to use candlelight spell.
- Killing Falmers - even after i learn about their history, i still enjoy killing them ![:devil:](http://www.gamesas.com/images/smilie/devil.gif)
My favorite area in vanilla Skirim is Blackreach...
- Werewolf or/and Vampire Lord Perks.
- Soul Cairn - could be bigger with more enemies, but you get a lot of soul gems here and also you get a horse that you can summon any time you need it.
- The Reaper's Lair.
- The missing markers in Forgotten Valey - i spent a few days exploring every corner of this area and it's worth every minute here.
- Serana - one of the best followers in the game. It can be annoying sometimes when she repeats the same thing again and again and again (maybe she's a servant of Sheogorath)
Things i like from Dragonborn:
- The story is much better than Downguard's story (either sides).
First time i went to Solstheim i couldn't start the main quest (i didn't advance in Skyrim's main quest), but i explored the island and made some side quest until i got to Skaal village and i found a book "The Guardian and the Traitor". I wanted to learn more about the story behind Miraak, so i went back to Skyrim and took the path of the 7000 steps, so i can begin Dragonborn's main quest.
There are many interesting books that you can find only on Solstheim.
- Finding more about Morrowind's history.
- Interesting side quests, puzzles, treasure hunting...
- Best boss fights (Kartaag an Miraak).
- Apocrypha (the plain of Hermaeus Mora).
- Killing rieklings - they are a good replacement for falmers.