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

Optimization · Practiced Mastery
Acrobatic puzzle-platformer where rewinding time turns every fatal mistake into a do-over.

Optimization · Practiced Mastery
The PS3 debut of Ratchet & Clank, mixing exotic weapons with an upgrade-driven adventure.
Prince of Persia: The Sands of Time leans Optimization (Practiced Mastery); Ratchet & Clank Future: Tools of Destruction leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Prince of Persia: The Sands of Time
Acrobatic platforming chains need timing; rewind softens failure
Ratchet & Clank Future: Tools of Destruction
Third-person shooting and platforming, moderately demanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Prince of Persia: The Sands of Time
Sand creatures attack on fixed cues
Ratchet & Clank Future: Tools of Destruction
Scripted enemy waves
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Prince of Persia: The Sands of Time
Rewind power removes most consequence of surprise
Ratchet & Clank Future: Tools of Destruction
Deterministic encounters
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Prince of Persia: The Sands of Time
Route reading and dagger resource management solve each room
Ratchet & Clank Future: Tools of Destruction
Weapon levelling economy and upgrade pathing
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.
full breakdown
Prince of Persia: The Sands of Time →
full breakdown
Ratchet & Clank Future: Tools of Destruction →