head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Competitive PvP
The second Versus-series crossover, escalating tag-team chaos with assists and screen-filling supers.

Execution · Competitive PvP
A combo-heavy 3D fighter where lab-trained hands meet live human prediction.
Marvel Super Heroes vs. Street Fighter leans Execution (Competitive PvP); Tekken 6 leans Execution (Competitive PvP).
Tekken 6 leans a little harder on execution, though the gap is small.
Marvel Super Heroes vs. Street Fighter
Long air chains, assists, and infinites set a high physical bar.
Tekken 6
Bound combos and movement push a high physical ceiling
Tekken 6 leans a little harder on reads, though the gap is small.
Marvel Super Heroes vs. Street Fighter
Tag and assist mixups against adapting humans drive wins.
Tekken 6
Rage comebacks amplify the human guessing game
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Super Heroes vs. Street Fighter
Deterministic chaos; everything visible.
Tekken 6
Visible state; nothing meaningfully random
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Super Heroes vs. Street Fighter
Team synergy and touch-of-death routes are deeply solvable.
Tekken 6
Optimal bound routes and punishment charts are lab work
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.