Jason lives is the film that made Jason and went on to become one of the best films in the franchise. No other Friday film even compares to how well this one was written and filmed.
sharePart 5 is my favorite. I know many dislike it, but I loved it dark, mean spirited tone (much like the others before it), and the ending really set up a great twist that could have moved the franchise in a new direction, or given it a new beginning as it stated (which unfortunately we never saw, as fans wanted more of Jason).
That all aside, 5 has the best nudity of the series :)
The Saw Is Family
I think I like Part VII slightly more, but this is my second favorite of the series.
Poorly Lived and Poorly Died, Poorly Buried and No One Criedshare