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 · Practiced Mastery
Loose action execution and horde-building through scripted comedy set-pieces.

Execution · Practiced Mastery
Visceral hack-and-slash movie tie-in where Wolverine shreds everything in reach.
Stubbs the Zombie in Rebel Without a Pulse leans Execution (Practiced Mastery); X-Men Origins: Wolverine leans Execution (Practiced Mastery).
X-Men Origins: Wolverine leans a little harder on execution, though the gap is small.
Stubbs the Zombie in Rebel Without a Pulse
Limb-throwing and horde wrangling need only loose aim
X-Men Origins: Wolverine
Lunge timing and combo flow carry brawls.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Stubbs the Zombie in Rebel Without a Pulse
Townsfolk and soldiers follow scripted AI
X-Men Origins: Wolverine
Enemies attack on fixed scripts.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Stubbs the Zombie in Rebel Without a Pulse
Encounters are fixed set-pieces
X-Men Origins: Wolverine
Almost none; encounters are staged.
X-Men Origins: Wolverine leans a little harder on optimization, though the gap is small.
Stubbs the Zombie in Rebel Without a Pulse
Conversion economy - building your horde - rewards light planning
X-Men Origins: Wolverine
Mutagen builds and skill unlocks are simple to solve.
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.