head to head
StarCraft II: Wings of Liberty asks more than Capcom vs. SNK 2: Mark of the Millennium 2001, and the gap is optimization.

Execution · Grand Arena
Crossover fighting game where groove systems and footsies meet deep execution demands.

Execution · Grand Arena
Real-time strategy where hands, reads, and build optimization all matter at the top.
Capcom vs. SNK 2: Mark of the Millennium 2001 leans Execution (Grand Arena); StarCraft II: Wings of Liberty leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Capcom vs. SNK 2: Mark of the Millennium 2001
Strict links, roll cancels, groove mechanics
StarCraft II: Wings of Liberty
APM, macro, micro-control under pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Capcom vs. SNK 2: Mark of the Millennium 2001
Footsies and conditioning against adapting humans
StarCraft II: Wings of Liberty
1v1 ladder vs adaptive humans modeling you
StarCraft II: Wings of Liberty leans a little harder on variance, though the gap is small.
Capcom vs. SNK 2: Mark of the Millennium 2001
Almost no randomness in matches
StarCraft II: Wings of Liberty
map spawns minor; mostly known
StarCraft II: Wings of Liberty leans clearly harder on optimization.
Capcom vs. SNK 2: Mark of the Millennium 2001
Groove selection, team order, matchup theory
StarCraft II: Wings of Liberty
build orders, economy curves heavily solved
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.
full breakdown
Capcom vs. SNK 2: Mark of the Millennium 2001 →
full breakdown
StarCraft II: Wings of Liberty →