head to head
vs
VOEZvsVVVVVV
VOEZ leans Execution (Pure Mechanics); VVVVVV leans Execution (Pure Mechanics).
VOEZVVVVVV
Axis by axis
Execution9 vs 9
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 0
VOEZ leans harder on variance: Charts are fixed per song
Optimization2 vs 3
VVVVVV leans harder on optimization: Routes are short and obvious; execution is everything
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.