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

Execution · Competitive PvP
A sprawling military simulator where realistic ballistics and planning beat reflexes.

Execution · Competitive PvP
A baseball simulation built on pitch-timing and batter-pitcher prediction.
Arma 2 leans Execution (Competitive PvP); Major League Baseball 2K7 leans Execution (Competitive PvP).
Major League Baseball 2K7 leans a little harder on execution, though the gap is small.
Arma 2
Ballistics, stance, and positioning over twitch aim
Major League Baseball 2K7
Pitch and swing timing decide most at-bats
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Arma 2
Human squads in PvP scenarios adapt
Major League Baseball 2K7
Pitch-selection mind-games against humans matter online
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Arma 2
Vast terrain hides enemy positions
Major League Baseball 2K7
Hit and fielding outcomes add measured randomness
Arma 2 leans a little harder on optimization, though the gap is small.
Arma 2
Doctrine, loadouts, and mission planning
Major League Baseball 2K7
Roster and franchise management form a solvable layer
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.