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

Execution · Competitive PvP
The peak-era Konami football game prized for weighty, skill-driven match play.

Execution · Competitive PvP
A football sim testing stick control plus constant prediction of a human opponent's tactics.
Pro Evolution Soccer 6 leans Execution (Competitive PvP); World Soccer: Winning Eleven 9 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.
Pro Evolution Soccer 6
First touch, through balls, and dribbles demand precise control
World Soccer: Winning Eleven 9
First-touch timing, dribbling and shot placement decide matches
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Pro Evolution Soccer 6
Versus matches are constant feint and positioning prediction
World Soccer: Winning Eleven 9
Human opponents feint, vary tactics and punish habits
World Soccer: Winning Eleven 9 leans a little harder on variance, though the gap is small.
Pro Evolution Soccer 6
Deflections and keeper spills add light randomness
World Soccer: Winning Eleven 9
Deflections and referee calls add bounded chaos
World Soccer: Winning Eleven 9 leans a little harder on optimization, though the gap is small.
Pro Evolution Soccer 6
Formations and player roles are studyable
World Soccer: Winning Eleven 9
Formations, player roles and set pieces reward study
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.