head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Competitive PvP
A tactical shooter where precise gunplay against human opposition is the deciding skill.

Execution · Competitive PvP
High-speed tag-team execution and human prediction in gleeful early-Versus chaos.
Counter-Strike: Condition Zero leans Execution (Competitive PvP); Marvel vs. Capcom: Clash of Super Heroes leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Condition Zero
aim and spray control decide duels
Marvel vs. Capcom: Clash of Super Heroes
Chain combos, assists and infinites demand fast precise hands
Marvel vs. Capcom: Clash of Super Heroes leans a little harder on reads, though the gap is small.
Counter-Strike: Condition Zero
predicting human opponent positioning
Marvel vs. Capcom: Clash of Super Heroes
Baiting a human's assist call or super is the duel
Counter-Strike: Condition Zero leans a little harder on variance, though the gap is small.
Counter-Strike: Condition Zero
buy-round economy and drops vary slightly
Marvel vs. Capcom: Clash of Super Heroes
Hidden characters aside, everything is public
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Condition Zero
economy management and utility usage solvable
Marvel vs. Capcom: Clash of Super Heroes
Team composition and infinite-combo knowledge define the meta
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
Counter-Strike: Condition Zero →
full breakdown
Marvel vs. Capcom: Clash of Super Heroes →