head to head
vs
Crusader Kings IIvsWords With Friends
Crusader Kings II leans Optimization (Systems & Chaos); Words With Friends leans Optimization (Pure Optimization).
Crusader Kings IIWords With Friends
Axis by axis
Execution1 vs 0
Crusader Kings II leans harder on execution: pausable, no reflex
Reads3 vs 3
Even - both lean on reads about the same.
Variance5 vs 5
Even - both lean on variance about the same.
Optimization7 vs 8
Words With Friends leans harder on optimization: Word knowledge and bonus-square math would be trivialised by a solver
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.