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 · Pure Mechanics
Linear military FPS about resisting an occupation of the United States.

Execution · Pure Mechanics
Grapple-timing execution and mashing stamina in arcade wrestling matches.
Homefront leans Execution (Pure Mechanics); WWF Royal Rumble 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.
Homefront
Standard shooter gunplay carries the campaign
WWF Royal Rumble
Grapple timing and button mashing decide every lock-up
WWF Royal Rumble leans a little harder on reads, though the gap is small.
Homefront
Multiplayer adds some human prediction
WWF Royal Rumble
Human opponents add some habit prediction in versus
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Homefront
Scripted setpieces, little randomness
WWF Royal Rumble
Little is hidden beyond grapple outcome wobble
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Homefront
Modest loadout and map knowledge layer
WWF Royal Rumble
Move utility knowledge is a shallow solvable layer
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.