head to head
vs
Angry Birds Blast!vsFallout Shelter
Angry Birds Blast! leans Optimization (Systems & Chaos); Fallout Shelter leans Optimization (Pure Optimization).
Angry Birds Blast!Fallout Shelter
Axis by axis
Execution1 vs 0
Angry Birds Blast! leans harder on execution: Tapping tile clusters has no timing demand
Reads0 vs 0
Even - both lean on reads about the same.
Variance5 vs 4
Angry Birds Blast! leans harder on variance: Board layout and power-up drops are randomized
Optimization7 vs 7
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.