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
A surreal on-rails action adventure where seven assassin personas shoot invisible smiling bombs through a cryptic conspiracy.

Optimization · Practiced Mastery
A Marvel team brawler where picking the right hero combos and fusions does the winning.
killer7 leans Optimization (Practiced Mastery); Marvel Ultimate Alliance 2 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.
killer7
Critical-point shots and reloads under pressure
Marvel Ultimate Alliance 2
Fusion timing and brawling are accessible.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
killer7
No adaptive opposition; enemies fully scripted
Marvel Ultimate Alliance 2
Fully scripted PvE encounters.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
killer7
First-run Heaven Smile reveals and obtuse twists
Marvel Ultimate Alliance 2
Small randomness in boosts and drops.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
killer7
Persona puzzles and routes have fixed solutions
Marvel Ultimate Alliance 2
Roster synergy and fusion choices are the real lever.
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.