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 · Pure Mechanics
A pure lane-timing reflex test against head-on collision cars.

Execution · Practiced Mastery
One-thumb tap-timing precision over fixed courses with solvable coin routes.
Dodge 'Em leans Execution (Pure Mechanics); Super Mario Run leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dodge 'Em
Lane-switch timing against closing cars is the whole game
Super Mario Run
One-handed tap timing for coin lines demands precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dodge 'Em
Computer cars chase head-on by simple fixed logic
Super Mario Run
Auto-runner with no adaptive opponent; Toad Rally is asynchronous
Dodge 'Em leans a little harder on variance, though the gap is small.
Dodge 'Em
Opposing car spawns vary slightly per loop
Super Mario Run
Courses are fixed and fully learnable
Super Mario Run leans a little harder on optimization, though the gap is small.
Dodge 'Em
Optimal lane patterns are quickly learnable
Super Mario Run
Routing perfect coin runs is a solvable layout puzzle
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.