My favorite is Part 4, The Final Chapter, followed closely by Part 3.
The worst one is Jason Goes To Hell. The evil spirit jumping from body to body with no Jason until the very end? NO! Part 5 is rough, but even a Jason imposter is better than no Jason at all. The bottom line is don't make a Friday the 13th movie without Jason.
Jason Takes Manhattan has that awesome death where Jason lets the kid punch him over and over again on the rooftop. Like he's saying, "Give me your best shot." The kid eventually becomes exhausted and then with one swift punch Jason decapitates the kid and his head rolls off the roof into a dumpster. Brilliant!
Marie: Don't be in such a hurry about that pretty little chippy in Frisco.
Tony: Eh, she's a no chip!