Biggest gap between critics and audience perception
the rotten tomatoe scores for the franchise are quite interesting:
as to jurassic park, the lost world and jurassic world, critic score and audience score are pretty similar.
the two exceptions are jurassic park III and fallen kingdom. both (currently) have the same "rotten" critics score of 50%. while the audience of jp III hated the movie even more (only 36%), the opposite is the case with fallen kingdom, where the audience score is at 63%.