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
The pioneering ninja stealth game of rooftop grappling and one-strike assassinations in feudal Japan.

Optimization · Practiced Mastery
The original tomb-crawling platformer, a spatial puzzle solved with careful jumps.
Tenchu: Stealth Assassins leans Optimization (Practiced Mastery); Tomb Raider 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.
Tenchu: Stealth Assassins
Grapple movement and stealth-kill timing
Tomb Raider
Grid-based jumps need deliberate, precise positioning
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Tenchu: Stealth Assassins
Guards patrol on fixed routes
Tomb Raider
Wildlife and guardians follow fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tenchu: Stealth Assassins
Item drops and unseen layouts first run
Tomb Raider
First-run trap and secret locations are unknown
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Tenchu: Stealth Assassins
Guard routes and Grand Master paths solvable
Tomb Raider
Levels are spatial puzzles with solvable routes
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.