head to head
vs
Scribblenauts UnlimitedvsZork
Scribblenauts Unlimited leans Optimization (Pure Optimization); Zork leans Optimization (Pure Optimization).
Scribblenauts UnlimitedZork
Axis by axis
Execution1 vs 0
Scribblenauts Unlimited leans harder on execution: Typing words is the only physical demand
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.