head to head
vs
Street Fighter IVvsX-Men vs. Street Fighter
Street Fighter IV leans Execution (Grand Arena); X-Men vs. Street Fighter leans Execution (Grand Arena).
Street Fighter IVX-Men vs. Street Fighter
Axis by axis
Execution9 vs 9
Even - both lean on execution about the same.
Reads8 vs 8
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization6 vs 6
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.