Alice (big spoilers)
So, was she the big deal? Something like a priestess or an agent of Satan, with the mission of collecting souls and dooming them to Hell?
They could have given some back story to explain why she was too hard-core for the other regular worshippers.
Alice looked so innocent and free, I empathised with her. I was a bit surprised. Pity the movie went downhill after she died.
I enjoyed the ending though. Not the usual hero or heroine killing bad guys and surviving to tell the tale as in most horror stories.