Board Thread:Mod Discussion/@comment-176.24.181.214-20150319191732/@comment-26460089-20150603061827

Well, you have to look all the differents between them.

Dawnguard

- Access to Crossbow: It's a very powerfull weapon if you get the enchanted version which can ignore 50% armor

- Pets: You'll have two dogs to follow you as a follower

- Creature ally: Armors Trolls will help you in combat if you hire them

- Spells against Vampires

- Access to Vampire Lord Form (After questline)

- Trainers: Restoration master, Smithing trainer, Heavy Armor master and a Archery master too.

Vampires

- Access to powerful rings: You'll can get two very good rings (Ring of Beast: +100 heath and +20 vampire claws damage / Ring of Erudite: +100 Magicka and enhance magicka regeneration)

- Access to two amulets: Two amulets can be caught to help you in Vampire Lord form.

- Access to Vampire Royal Armor: Isn't the best armor, but the 125% Magicka regeneration can be useful for you and come on, it's very badass (my opinion haha).

- Pets: 2 Death hound dogs can be use to help you as a follower.

- Spells heal and evoke undead creatures

- Creature: Can summon a gargoyle to help you in combats (Only available in Vampire lord form)

- Acess to Vampire Lord form

- Trainers: Two-Handed master and Speech trainer

- With Dawnguard DLC, when you are in vampirism stage four, you won't be attack by people anymore! It's very good, now you can travel and walk around as a normal person.

- You can use Auriel's Bow with Bloodcursed arrows to block the sun, doing this, the negative effects causing by vampirism won't be work! One more good point here!

You have to concern others factors too, this is just a little abstract about the theme. Serena can be a follower in both sides and you can turn in a Vampire Lord in both sides too, however, the rings, amulets and all the other stuff which i mentioned can't be obtained if you join in Dawnguard.