Of course neither is really an option since they were never properly updated from 3.0. I'm just saying that if unseelie fey were an option, ghoulish creature would immediately become a superior option. Any discussion that includes the one has to acknowledge the other. Also, let's not forget bodak creature—if you can get around the sunlight vulnerability, an insta-death gaze attack is preeetty broken at +0 LA.
Like, f'reals, I don't get why people are so high on unseelie fey when it's, like, the weakest template in the book.