The scariest is hard to determine. It's hard to get things right for fear, but I'd have to say Entity 51, or "In the Hall of the Mountain King." To know that you have to keep running or you die is terrifying if I put myself in that situation
Funniest has to be How to get a Greenlight, because being a greenlighter I find that absolutely hilarious and relatable.
Cutest has to be a WOOOM, because those things are adorable.
Well written has to be The Dark Metro or, shameless self plug, Entity 297. The Dark Metro is very, very long, but it does its job of building tension and an ominous tone. My entity, while arguably not as good as one of my other works, Level 197, I think allows much more mystery and questions to take hold.
That's about it for me!