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 · Competitive PvP
Shot timing and play-calling against opponents who scheme around your habits.

Execution · Competitive PvP
A football simulation testing ball control, tactics and reading opponents.
NBA 2K16 leans Execution (Competitive PvP); Pro Evolution Soccer 2011 3D leans Execution (Competitive PvP).
Pro Evolution Soccer 2011 3D leans a little harder on execution, though the gap is small.
NBA 2K16
Shot-stick timing and dribble moves gate every possession
Pro Evolution Soccer 2011 3D
Passing, shooting and dribbling controls demand timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
NBA 2K16
Online opponents adjust defensive schemes against your tendencies
Pro Evolution Soccer 2011 3D
Human opponents must be outguessed in real time
Pro Evolution Soccer 2011 3D leans a little harder on variance, though the gap is small.
NBA 2K16
Shot RNG and card packs add bounded randomness
Pro Evolution Soccer 2011 3D
Deflections and physics add measured unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
NBA 2K16
Playbooks, rotations and roster building reward deep study
Pro Evolution Soccer 2011 3D
Formations and tactics reward strategic planning
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.