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
Late-90s 3D platformer about a crocodile rescuing furry Gobbos.

Execution · Practiced Mastery
Wrangling high-speed 3D movement through fixed stages and boss scripts.
Croc: Legend of the Gobbos leans Execution (Practiced Mastery); Sonic Adventure DX: Director's Cut 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.
Croc: Legend of the Gobbos
tank-control platforming demands precise jumps
Sonic Adventure DX: Director's Cut
High-speed 3D control and jank-wrangling demand real hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Croc: Legend of the Gobbos
no adaptive opponent
Sonic Adventure DX: Director's Cut
Chaos bosses run fixed phase scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Croc: Legend of the Gobbos
levels are fixed and visible
Sonic Adventure DX: Director's Cut
Stage layouts and upgrades never change
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Croc: Legend of the Gobbos
collectible routes are simple to learn
Sonic Adventure DX: Director's Cut
Speedrun routing and A-rank paths are learnable systems
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.