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.
Terminator 2 is the perfect sequel - expands on the original and shakes things up while maintaining the general feel. I don’t think it would be as highly praised if it wasn’t a followup on the first movie. It would still be a great movie in a vacuum, though, don’t get me wrong.
As such, it’s pretty hard to compare the movies, it will always come down to personal taste.