Originally Posted by MarilynManson
I am confused because I don't know who to follow, which one will give better outcome?
in Antedeluvian vault, Bellegar or Behrlihn?
and Astridax or the owner of 3 jewelries?
I always try both sides of the coin. Just make a hard save and experience all that the game offers you. In the case of the 3 jewels, Astridax's rewards/exp were significantly better than turning them in to the 3 individuals.

I'd like to close by quoting Bellegar's famous last rhyme:

"Cursed be the mother that bred thee!
The wench must have been a hell-spawned banshee!"