head to head
vs
Monument Valley 2vsProject Spark
Monument Valley 2 leans Optimization (Pure Optimization); Project Spark leans Optimization (Pure Optimization).
Monument Valley 2Project Spark
Axis by axis
Execution1 vs 2
Project Spark leans harder on execution: Sculpting and play tests need no twitch skill
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization6 vs 6
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.