head to head
vs
Assassin's Creed UnityvsNieR
Assassin's Creed Unity leans Optimization (Practiced Mastery); NieR leans Execution (Practiced Mastery).
Assassin's Creed UnityNieR
Axis by axis
Execution4 vs 5
NieR leans harder on execution: combat timing and dodges matter
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 2
NieR leans harder on variance: loot and encounter randomness
Optimization5 vs 5
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.