I can't remember a single scene from JP3 aside from the pterodactyl shit.
On the other hand, the raptors in the kitchen, and the T-Rex attacking the jeep (one of the greatest action scenes of all fucking time, holy shit this scene might be Spielberg's crowning achievement, fuck E.T.), and the T-Rex owning the two raptors at the end, and the dilophosaurus owning Newman in JP1 fucking stuck with me for years.
Hell, even The Lost World had some memorable scenes, such as when the T-Rex almost pushed the trailer off the cliff, and when the two T-Rexes were chasing the whole group of humans.