I think for me the scariest forsaken was Semhirage.
He should have had her in the series WAYYYYY More. She was so much scarier and more interesting than most other Forsaken
I am unsure if it was a space issue or what but yes. You are correct. he could've been SOOOO much more effective and sinister! I feel like he wasn't used to his fullest Potential at all! But what I DID see I truly liked.
I still see Logain as a Bit of a Villain too. he wasn't EVIL per se, but...