head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Pure Mechanics
Reflex-driven point-to-point racing through heavily scripted setpieces.

Execution · Pure Mechanics
High-speed bike control and combat timing over memorised courses.
Need for Speed: The Run leans Execution (Pure Mechanics); Road Rash 3 leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed: The Run
Reaction driving through traffic and setpieces is the test
Road Rash 3
High-speed steering plus melee timing against rival riders
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed: The Run
Rivals rubber-band on scripts, nothing to out-think
Road Rash 3
AI riders follow patterns, not adaptive minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed: The Run
Scripted events surprise once, then are known
Road Rash 3
Traffic and rival behaviour inject mild chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed: The Run
Checkpoint routes and car choice are quickly solved
Road Rash 3
Bike upgrades and track knowledge compound across the career
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.