A lot of them hold up well actually. Part 6 is really as far as I'm willing to watch them now to be honest (part 7 looks really cheesy despite the great spfx and addition of Kane Hodder). Part 5 might be the exception as I rarely ever watch that one, but parts 1, 2, 3, 4, and 6 are definitely all in my normal horror film rotation, especially parts 3, 4, & 6 which are the three F13th films I grew up on. C.J.Graham's portrayal of Jason is up alongside Ted Whites (part 4) as my overall favorite.