Jason:
Crystal Slasher (Part 2-4)
This version can run.
He is still human, but can still shrug off heavy blows from axes, machtes and being hung, and will be back on his feet after a short rest.
He is capable of breaking skulls with his bare hands.
He can be taken off guard and tackled, a kick to the crotch will knock him down and he will retreat if chased with a chainsaw or knife.
He can still bleed and react to wounds inflicted on him.
His biggest weakness is being reminded of something in his past, which will temporarily lose his desire to kill.
He can be killed by heavy head trauma.
'Zombie' (Part 6-8 & VS)
This version is quite slow moving and walks only.
This version may have some kind of tissue regeneration.
This version of Jason is a lot bigger and can twist and knock people's limbs and heads off with very little force.
This version doesn't really react to pain that much and can shrug off bullets.
This version can be knocked out temporarily, but will be back on his feet fast.
This version is really only defeated when he is trapped in a confined area and has to wait for someone to accidentally free him.
Lone Wolf (2009)
This version is a lot like the first, though a lot stronger, faster and taller.
He is very strong, but not super human strength.
He can be distracted by a woman that resembles his mother.
He can be defeated with head trauma, though it isn't stated if this will permanently kill him as it may or may not have been a dream in the movie.
Soul Hopper (JGTH)
This version is a lot like the zombie, though he isn't as strong.
He reacts to pain and even though he can shrug off bullets, they still cause him to scream in pain.
If this version is defeated, then his heart will posess people and literally the only way to defeat him is if a relative stabs him with a magical dagger, making this version the strongest and most difficult to defeat.
He can probably only be 'defeated' if he is locked into a confined area (like in part 6, being chained to the bottom of the lake) as it would be next to impossible to find a Voorhees family member to stab him.
Úber (X)
This version has no feeling of pain and bullets will bounce off of him.
This version has metallic hands that can punch through walls and destroy people with ease.
This version (according to the original script) doesn't even care about avenging his mother's death anymore, and cannot be distracted.
This version can literally only be defeated by being sucked into out of space, but even then he'll probably survive the landing.
Michael:
Boogeyman (1-2)
This version is an average height, slim build man and mostly relies on strangulation as a primary way of killing, with a stab for a finishing blow.
This version is strong, but not too strong. He can pick up someone with a scalpel or impale them into a wall with one stab.
This version can be knocked out for periods of time from being stabbed with knives and knitting needles and can shrug off bullets.
This version can even shrug off being set on fire for a short period of time, before collapsing.
Thorn Pawn (4-6)
This version is a lot taller and bulkier.
This version now has super human strength and can break peoples necks with his bare hands, shove his thumb into someone's forehead etc.
This version has a magical curse that gives him powers, but can be stopped by runes being placed on the floor in front of him.
This version can be distracted and temporaily losing his desire to kill, if he is reminded that he is cursed.
Stalker (H20-Res)
This version is a slightly taller version of the original.
This version is stronger and can knock a head clean off with a simple knife swing.
Hulk (RZH-H2)
This version is a literal giant.
This version is very strong and can throw people around with ease, though isn't super humanely strong.
This version may or may not be able to be killed with regular human injuried (brain or heart damage).
Evil Force (2018-Ends)
This version is a taller, stronger and older version of the original.
This version has been shown to have super human strength abilities, like sticking blunt objects through people's body like putty or stomping on people's heads like a pumpkin.
This version may have some kind of supernatural abilities, as he is able to be shot and beaten to a pulp and rise back and kill an entire crowd of people, though the mysteries of this will be revealed in the next movie.
This version can shrug off damage, though will still bleed and winse from a wound. He can also lose body parts such as an eye or fingers from trauma, which will lead him to have to patch it up before he continues.