I agree. Almost every ad or TV spot for a new release film includes some embellished overused quote, like "riotously funny," "funniest movie of the year," "best movie of the year," or "must-see."
Ideally, I prefer knowing as little as possible about a movie or its reviews before seeing it, to avoid any inflated expectations, so I aim to go on opening weekends if possible.
Pompeii looks like a movie that sucks whereas American Hustle was actually a wonderful and most delightful movie.
I still need to see Nebraska however.