The first Jurassic Park movie is all time one of the greatest films ever made with the special effects still holding up to this day. The 2nd film was still very enjoyable in my opinion but it was just a cookie cutter sequel not bad, not good. The 3rd film wasn’t great at all. But compared to the rest of the series the 3rd film is basically the godfather.
As another personal pick the 1st blade movie is a hood classic good. The other 2 not so much.
If you take each trilogy as a set, sure.
But Empire and Return were both amazing films that one-upped the original.
And I think Clones was better than Phantom.
The final trilogy was a straight fucking cliff both by itself and in comparison to the other trilogies.