Board Thread:Online Discussion/@comment-99.194.28.74-20140619035550/@comment-24261859-20140717005424

Both have about the same number of quests. As for cool, that's really subjective. I prefer the Dawnguard since they're more reminiscent of a coherent fighting force, but a lot of people like the blood magic style of the vampires.

The Vampires have a lot of loot that enhance Vampire Lord form, but the Dawnguard let you access extremely powerful crossbows and equipment with bonuses against undead.