head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

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

Execution · Competitive PvP
High-speed tag-team execution and human prediction in gleeful early-Versus chaos.
Marvel Super Heroes vs. Street Fighter leans Execution (Competitive PvP); Marvel vs. Capcom: Clash of Super Heroes leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Super Heroes vs. Street Fighter
Long air chains, assists, and infinites set a high physical bar.
Marvel vs. Capcom: Clash of Super Heroes
Chain combos, assists and infinites demand fast precise hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Super Heroes vs. Street Fighter
Tag and assist mixups against adapting humans drive wins.
Marvel vs. Capcom: Clash of Super Heroes
Baiting a human's assist call or super is the duel
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.
Marvel vs. Capcom: Clash of Super Heroes
Hidden characters aside, everything is public
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.
Marvel vs. Capcom: Clash of Super Heroes
Team composition and infinite-combo knowledge define the meta
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.
full breakdown
Marvel Super Heroes vs. Street Fighter →
full breakdown
Marvel vs. Capcom: Clash of Super Heroes →