I had recurring dream about hell. Had it about yearly for about 4 years. Never bugged me it was just so vivid and intense, but only lasted for a few seconds (or so it seemed).
I would probably find it scarier if I weren't agnostic.
One thing I hate about dreams is when they think you've done something you haven't. I've had dreams that I've asked to borrow things and not realized that it was just a dream. I've also had dreams that I've been falling or kicked something and then my leg kicks and I wake up.
Dreams are wack, and I don't usually dream what I want to.
Man I hate those! Especially when it is totally awesome. I had a dream once when I was little that I got a genesis and when I woke up I went and looked for then realized it was a dream. Same thing for a totally awesome spider-man toy.
What I hate most is when I'm only half asleep and I feel something crawl on me. I have slight arachnophobia and so I go and tear my bed apart and find nothing. I don't sleep for the next couple of nights.