AP
Jason is at least 4.87x stronger than Springtrap, but is likely 5-6x stronger
Durability
- Springtrap: His current justification(s) are surviving a fire and presumably withstanding his own attack power. The fire was calced at 26,550.32 joules per second. Now since he has mods, it seems like with a max out Hydropneumatic Suspension mod he's 45% more durable. Which would place his durability at 153,599.95 joules and 38,497.964 j/s for the fire
- Jason: He has the same fire feat as Springtrap, withstood a car explosion which was calced at 48,474.62 joules, can survive his own attacks at >516,644.24 joules, and finally the boiler drop was calced at 10,912,990.16963925 joules
Jason at the bare minimum is 4.87x Sprintrap's attack power, is roughly immune to Springtrap's fire output, and if you include the boiler drop he's an enormous 103x times more durable than Springtrap's AP
Lifting Strength
- Springtrap: Listed as Class 5 for ripping a human apart
- Jason: He can also easily tear humans apart with his bare hands, along with lifting and throwing a car. The boiler feat is likely non-usable due to Dream World shenanigans
Either they're roughly equal or Jason is superior due to the car toss
Stealth
Both character possess stealth, so it comes down to which one can use it more effectively than the other. Or in other words can their senses counter their enemies' stealth. Jason's senses by EoS is rather extreme allowing him to detect electric impulses and sounds, along with "life". Its likely that Jason can detect Springtrap if he goes to hide, however the reverse really isn't true. Now its not impossible for Springtrap to find Jason, but it will be hard while the reverse isn't true for Jason finding Springtrap.
Though in-character I honestly do not see Jason abusing stealth in any real fashion. He's more "kill, rip, destroy" than "sneaky-sneaky". Also being on fire does not really help him in any capacity in terms of stealth.
Regeneration
Jason can regenerate and heal things like his eyes within a handful of seconds. This means that in order for Springtrap to win he cannot try and whittle Jason down, since Jason can just heal back from the damage. And the damage he does inflict must target his brain, since
Jason does not need any of his other vital organs (besides maybe the spine)
Possession/Resurrection
While Jason has these powers, I don't see either coming into play. Springtrap likely cannot even consume his heart in order for his spirit to hijack it. Jason can also resurrect, but it takes between 12 hours to years for that to actually happen, meaning its not a super viable comeback method.
Conclusion
Even with prior knowledge I'm not seeing Springtrap winning this without legitimate prep time that might not even work in the first place. Jason has at least five times the attack output as Springtrap and his AP would be 3.36x above Springtrap's enhanced durability, and that's not even bring up that he uses a
weapon that will
heavily focus that attack
power in a small area. Jason
at worst is roughly 5x times more durable than what Springtrap can output and in the best case 103x more durable, making him almost impossible to legitimately harm.
The fire will do nothing to Jason, stealth isn't a viable option, Springtrap is at best comparable to Jason physically if not weaker than him. Really I don't see any real valid ways for Springtrap to do anything here. He's larger and has better pure melee reach, but that's about it. Jason takes everything else besides speed (since even while equalized there's MODs that could make him slightly faster as amps), and the speed advantage wouldn't be enough to overcome the solid gap between their physicals.
So Jason imo.