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
Isometric movement control while herding Flickies along memorised routes.

Execution · Practiced Mastery
A cinematic action-adventure where cover-shooting and traversal skill drive set-piece survival.
Sonic 3D Blast leans Execution (Practiced Mastery); Uncharted: Drake's Fortune Remastered 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.
Sonic 3D Blast
Isometric momentum control and Flicky herding need precise movement
Uncharted: Drake's Fortune Remastered
cover shooting and platforming precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sonic 3D Blast
Robotnik bosses run fixed patterns
Uncharted: Drake's Fortune Remastered
scripted enemy AI, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sonic 3D Blast
Flicky and badnik placements never change
Uncharted: Drake's Fortune Remastered
minor enemy spawn variance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Sonic 3D Blast
Routing each zone for Flickies and emeralds is learnable
Uncharted: Drake's Fortune Remastered
cover routes and upgrades solvable
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.