head to head
vs
Half-LifevsWatch Dogs
Half-Life leans Execution (Practiced Mastery); Watch Dogs leans Optimization (Practiced Mastery).
Half-LifeWatch Dogs
Axis by axis
Execution6 vs 5
Half-Life leans harder on execution: Combat aim and infamous platforming sections
Reads0 vs 1
Watch Dogs leans harder on reads: Online invasions add a small human element
Variance2 vs 2
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.