This is my main reason for not trusting Rotten Tomatoes, as well as most established critics; they review films for their message and NOT their merit as film.
When I write my reviews, I judge a film on:
- If it tells a good and compelling story
- Has a good structure
- Is well acted
- Looks good
- Is entertaining
I use the standard checks and balance used for the Original Star Wars Trilogy comparison, where each film rates with the others.
- The Empire Strikes Back
- A New Hope
- Return of the Jedi
Well, Empire is hands down the best of any of the trilogies. Empire kills it on: story, structure, acting, look and entertainment value.
I use that same thing in weighing all non Star Wars films, I learned to simply compare them to other films within their given genre. It still works.