head to head
vs
Duck HuntvsSkiFree
Duck Hunt leans Execution (Pure Mechanics); SkiFree leans Execution (Pure Mechanics).
Duck HuntSkiFree
Axis by axis
Execution7 vs 6
Duck Hunt leans harder on execution: Pure light-gun aim and reaction speed
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization1 vs 2
SkiFree leans harder on optimization: Beyond slalom lines there is little system to solve
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.