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
Side-scrolling stealth that rewards memorising patrols and executing clean routes.

Optimization · Practiced Mastery
Comedy RPG where every turn-based attack hides an action-timing minigame.
Assassin's Creed Chronicles: China leans Optimization (Practiced Mastery); Mario & Luigi: Superstar Saga 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.
Assassin's Creed Chronicles: China
Stealth timing and climb precision punish sloppiness
Mario & Luigi: Superstar Saga
Timed hits and dodge jumps every turn
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Chronicles: China
Guard patrols are fixed memorisable loops
Mario & Luigi: Superstar Saga
Bosses telegraph fixed patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Chronicles: China
Everything is scripted and visible with study
Mario & Luigi: Superstar Saga
Encounters are authored
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Chronicles: China
Routing perfect-stealth paths through guard patterns is the score game
Mario & Luigi: Superstar Saga
Bros. Attack mastery and stat builds
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.