User blog comment:ImperiexSeed/Top 3 favored Supernatural Creatures/@comment-4920092-20120523143529

1. Celestials - although I've seen Angels portrayed better in fiction (The Fallen [series] by Tom Sniegoski comes to mind), they are some of the most powerful creatures in Supernatural. Castiel's first appearance served as a testament to their power.

2. Infernals - includes demons, hellhounds, daeva, other residents of Hell. The demon storyline was really what turned Supernatural from a monster-of-the-week show into something with an actual overarching storyline, and have always been primary antagonists.

3. Ghosts - The classic Supernatural enemy....the sheer creepiness of an instant temperature drop and lights blowing out before an inevitable death is great. The introduction of more powerful ghosts in Season 7 makes me hopeful for some more ghostly action in Season 8.