I mean, they are great as memes nowadays. Back in the day JP3 I felt kind of came out of nowhere, and I didn't even see it in theaters. I remember asking friends how it was and basically all I got was "well, it's good if you want to see it for dinosaur fights". So, I rented it and got screaming annoying parents that had to make up a BS story to save their kid (which they should've said in the first place and could've got ya know, real government help and people with big guns etc). Raptors did look neat, Spinosaur looked neat, but I like Spinos so it was a bit of a bias. Then there was the dino fight and yeahhhh... Ceratosaurus makes a 2 second cameo (booo!!) and the whole movie experience didn't even feel like a JP. I had no idea what they were doing :/
I definitely want to sit down and rewatch TLW and JPIII again just for a direct comparison; I'd always considered TLW the worse film and until all these periodic "TLW! No, JPIII!" topics came up on GAF I didn't realize it was so contentious among some people. Maybe my disgust of TLW has more to do with how many times I've watched it versus quality compared to the other film.
I watch all three JP films like once a year. I thought the trailer sequence was good at stacking tension, transforming the trailers into a claustrophobic death trap, getting pushed over the cliff, sarah on cracking glass, then Carr with the Rex. It's fairly small scale when it comes to carnage but I always thought it was affective, esp the way it was shot. Plus the amazing score.
While there's a lot of that sequence I hate (mostly the idiocy Harding displays throughout the film but especially there) I think the bit where they are on the slowly-cracking glass is very nicely done.