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 · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.

Execution · Grand Arena
Frame-perfect execution fused with constant prediction of an adapting human opponent.
Overwatch leans Execution (Grand Arena); Ultra Street Fighter IV leans Execution (Grand Arena).
Ultra Street Fighter IV leans a little harder on execution, though the gap is small.
Overwatch
Hero aim, movement, and ability timing
Ultra Street Fighter IV
One-frame links and FADC timing set a brutal hands ceiling
Ultra Street Fighter IV leans a little harder on reads, though the gap is small.
Overwatch
Ult tracking, flanks, and baiting human teams
Ultra Street Fighter IV
Footsies and conditioning the human opponent is the core duel
Overwatch leans a little harder on variance, though the gap is small.
Overwatch
Minor spread and matchmaking noise
Ultra Street Fighter IV
Almost nothing hidden once both characters are known
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Overwatch
Team comps, ult economy, and positioning theory
Ultra Street Fighter IV
Frame data, matchups and option-selects form deep studied theory
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.