The best "review" system I've ever come across was Netflix's DVD plan. You would rate a bunch of movies and then it would give rating estimations of other movie

The best "review" system I've ever come across was Netflix's DVD plan. You would rate a bunch of movies and then it would give rating estimations of other movies based on how people with similar taste to you rated them, which is exactly what I want from a review system. The general population, groups of trolls, review bombers, people who just didn't like the same kinds of movies as you, etc. would all be irrelevant.