I don't know which one to be, vampire seems interesting but seeing as you get attacked at Stage 4 it kinda is a downside. I'm a level 23 Khajit assasin so would this benefit me and would my follower attack me if I get to stage 4??

Thanks in advance!

I like being a werewolf better. Its much easier to be the wolf in sheeps clothing so to speak. And you retain your khajiit appearance.

Werewolf.
No negatives.