head to head
Hardware: RivalsvsWii Sports Resort
Hardware: Rivals leans Execution (Competitive PvP); Wii Sports Resort leans Execution (Pure Mechanics).
Hardware: RivalsWii Sports Resort
Axis by axis
Execution6 vs 6
Even - both lean on execution about the same.
Reads4 vs 2
Hardware: Rivals leans harder on reads: Human opponents' arena rotations reward some prediction
Variance2 vs 2
Even - both lean on variance about the same.
Optimization3 vs 3
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.

