head to head
Call of Duty: Black Ops asks more than Mario Super Sluggers, and the gap is execution.

Execution · Competitive PvP
Cold War-era shooter pairing twitch multiplayer with the cult Zombies mode.

Execution · Competitive PvP
Party baseball testing swing timing and pitch-guessing against friends under item chaos.
Call of Duty: Black Ops leans Execution (Competitive PvP); Mario Super Sluggers leans Execution (Competitive PvP).
Call of Duty: Black Ops leans clearly harder on execution.
Call of Duty: Black Ops
Gunfights hinge on aim and reaction speed
Mario Super Sluggers
Swing timing and fielding reactions decide most plays
Call of Duty: Black Ops leans clearly harder on reads.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
Mario Super Sluggers
Pitcher-batter guessing games against humans reward prediction
Mario Super Sluggers leans a little harder on variance, though the gap is small.
Call of Duty: Black Ops
Spawns, care packages, zombies RNG
Mario Super Sluggers
Star powers and item errors inject party chaos
Call of Duty: Black Ops leans clearly harder on optimization.
Call of Duty: Black Ops
Class builds, map control, zombies routing
Mario Super Sluggers
Team chemistry and lineup building are shallow but real
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.