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

Execution · Practiced Mastery
Lara's reboot blending cover shooting, climbing, and survival cinema.

Execution · Practiced Mastery
A cinematic desert-bound adventure of shootouts, brawls, and sinking-ship set pieces.
Tomb Raider (2013) leans Execution (Practiced Mastery); Uncharted 3: Drake's Deception 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.
Tomb Raider (2013)
Bow aim, QTEs, and platforming timing matter.
Uncharted 3: Drake's Deception
Gunfights, melee, and chases need steady hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Tomb Raider (2013)
Scripted enemy waves, no adaptation.
Uncharted 3: Drake's Deception
Scripted enemies; multiplayer adds a trace
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tomb Raider (2013)
Minimal randomness in encounters.
Uncharted 3: Drake's Deception
Linear authored adventure
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Tomb Raider (2013)
Weapon upgrades and skill picks straightforward.
Uncharted 3: Drake's Deception
Learning encounters and routes solves the campaign
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.