head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Hunting each level's optimal slingshot solution under mild physics noise.

Optimization · Pure Optimization
A tower-defense game with whimsical creature waves.
Angry Birds Star Wars leans Optimization (Pure Optimization); Krinkle Krusher leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Star Wars
Slingshot aim needs only mild touch precision
Krinkle Krusher
light real-time placement timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Star Wars
Pigs sit motionless awaiting demolition
Krinkle Krusher
no adaptive opponent, waves are scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Star Wars
Physics tumbles add slight outcome noise per shot
Krinkle Krusher
random enemy wave composition
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Star Wars
Finding each level's three-star shot solution is the game
Krinkle Krusher
tower and unit placement strategy
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.