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 · Practiced Mastery
Stick-skill execution and opponent habit-reading over a solvable hockey meta.

Execution · Competitive PvP
Execution on the ball plus constant prediction of the other player's shape.
NHL 23 leans Execution (Practiced Mastery); Pro Evolution Soccer 2009 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.
NHL 23
Skill-stick dekes and shot timing carry possession play
Pro Evolution Soccer 2009
Close control and finishing windows demand stick precision
Pro Evolution Soccer 2009 leans a little harder on reads, though the gap is small.
NHL 23
Online opponents reward reading defensive structure habits
Pro Evolution Soccer 2009
Online and couch opponents adjust tactics against you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
NHL 23
Bounces, deflections and goalie AI add noise
Pro Evolution Soccer 2009
Ricochets and keeper parries add small randomness
NHL 23 leans a little harder on optimization, though the gap is small.
NHL 23
Meta builds, line chemistry and set plays are studyable
Pro Evolution Soccer 2009
Squad setup and tactical sliders reward preparation
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.