From what I have seen...
The Lost World was at the very least liked by most audiences from 1997 to around 2005. But from 2006 forward (The YouTube and social media era) the internet (for whatever reason) acts like nobody likes this movie. But when you ask the hardocre fans, most of them still like it. So I would say that nowadays to the general public or casual fans, TLW is considered a dissapointment, but to the hardcore fans it is still held in high regard.
Jurassic Park 3 although it still has a reputation for being the most dissapointing sequel...A few very casual moviegoers seem to kind of like it´s simple fast pace. But among the hardcore fans it is very disliked my most hardcore fans because of the simple plot, how it broke up Alan and Ellie, the Kirbys are very unpopular and of course the idea that the franchise icon stood no chance against this new species.
With Jurassic World, although it has recieved positive reviews and seems to be very liked among the general public and casual fans, at the same time I have seen harsh things said about it by the general public and casual fans who keep pointing out the high heels issue, the too much CGI issue, how the raptor for war does not work and all that. And within the hardcore fans, not all hardcore fans are that into the hybrids plot. So you could say JW is liked by most casual fans but mixed among hardcore fans.
Link to the T Rex Spinosaurus rematch in Jurassic World 3 petition that Colin Trevorrow noted. We hope everyone joins and help us share it.