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

Execution · Grand Arena
A fast anime fighter where execution and yomi compound under pressure.

Execution · Grand Arena
A hyper-fast tag fighting game defined by three-character teams and touch-of-death combos.
Guilty Gear Strive leans Execution (Grand Arena); Ultimate Marvel vs. Capcom 3 leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Guilty Gear Strive
Tight links, RCs, and burst timing are demanding.
Ultimate Marvel vs. Capcom 3
Long touch-of-death combos demand elite hands
Guilty Gear Strive leans a little harder on reads, though the gap is small.
Guilty Gear Strive
Adaptive opponents bait Roman Cancels and throws.
Ultimate Marvel vs. Capcom 3
Mixups and assist baits versus adapting humans
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Guilty Gear Strive
Essentially deterministic match flow.
Ultimate Marvel vs. Capcom 3
Almost fully deterministic
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Guilty Gear Strive
Matchup data, combo routes, and tension management.
Ultimate Marvel vs. Capcom 3
Team composition and matchup knowledge run deep
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.