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

Execution · Grand Arena
A tag-team 3D fighter layering team optimization onto Tekken's execution and reads core.
Overwatch leans Execution (Grand Arena); Tekken Tag Tournament 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.
Overwatch
Hero aim, movement, and ability timing
Tekken Tag Tournament
Tag combos and netsu juggles demand precise inputs
Tekken Tag Tournament leans a little harder on reads, though the gap is small.
Overwatch
Ult tracking, flanks, and baiting human teams
Tekken Tag Tournament
Tag timing adds another layer of human mind-games
Overwatch leans a little harder on variance, though the gap is small.
Overwatch
Minor spread and matchmaking noise
Tekken Tag Tournament
Open information; nothing hidden between rounds
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
Tekken Tag Tournament
Team synergy and tag combo routing are optimizable systems
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.