head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
The PS2 sequel escalating Kratos's mythological rampage against the Sisters of Fate.

Execution · Practiced Mastery
Memorising stage routes and executing them cleanly for ranks and speed.
God of War II leans Execution (Practiced Mastery); Sonic Adventure 2: Battle leans Execution (Practiced Mastery).
God of War II leans a little harder on execution, though the gap is small.
God of War II
Faster combat and harder bosses demand sharper hands
Sonic Adventure 2: Battle
Speed-stage control and rail precision reward clean hands
Sonic Adventure 2: Battle leans a little harder on reads, though the gap is small.
God of War II
Entirely scripted opposition
Sonic Adventure 2: Battle
Two-player battles exist but stay shallow and scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
God of War II
Deterministic encounter design
Sonic Adventure 2: Battle
Stages are fixed; Chao stats are deterministic grinding
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
God of War II
Magic priorities, upgrades, and boss patterns are learnable
Sonic Adventure 2: Battle
Rank chasing means memorising routes and score lines
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.