Friday the 13th Part VI: Jason Lives
One of the very best in the series.
Friday the 13th Part VII: The New Blood
Not bad, but not great either.
Friday the 13th Part VIII: Jason Takes
This one is a goddamn endurance test. Just a chore to watch, and it being the longest of the original eight doesn't help.
Jason Goes to Hell: The Final Friday
I'll readily admit that it makes no goddamn sense as a part of the franchise, but it's a fun ride with some good characters.