head to head
vs
Armored Core 4vsElden Ring
Armored Core 4 leans Optimization (Practiced Mastery); Elden Ring leans Execution (Practiced Mastery).
Armored Core 4Elden Ring
Axis by axis
Execution7 vs 8
Elden Ring leans harder on execution: Dodge timing and weapon spacing carry every fight.
Reads3 vs 1
Armored Core 4 leans harder on reads: Versus mode adds some human prediction; campaign AI is scripted
Variance1 vs 2
Elden Ring leans harder on variance: Open-world drops and rune farms add mild randomness.
Optimization8 vs 8
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.