While both are practically indestructible, Myers comes off as a mindless automaton with a program that instructs him to kill. Voorhees, is methodical and strides about with a sense of purpose. He actually seems to believe in the job he's doing. Watch the Friday the 13th and Halloween movie's back-to-back, or as many as you can absorb in one sitting, and the truth will become immediately apparent. Myers is about the only Movie Maniac that could slug it out with Jason for a good while, but the outcome would never be in doubt. Krueger gave him a good whirl around the dance floor, and although Freddy vs. Jason was a good movie, there was a lot of fumbling of the ball in my opinion. If you want me to go into detail, I will on this one point: Jason is Dead! He's a Zombie. How the **** was he susceptible to the tranquilizer injected into him to transport him back to Camp Crystal Lake? If you want to go off into left field here, Freddy shouldn't have been able to have ANY influence, in the guise of Pamela Voorhees or any other, because Krueger only attacks in dreams, and with the exception of that one scene JASON WAS AWAKE THE WHOLE TIME!!!
One last thing that is somewhat related: Why didn't Betsy Palmer reprise the Pamela Voorhees role? Does anyone know?