Building comparison
head to head
Mario & Sonic at the London 2012 Olympic GamesvsWii Sports
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Mario & Sonic at the London 2012 Olympic Games
Execution · Twitch Chaos
An Olympic minigame collection testing short bursts of motion-control timing.
Wii Sports
Execution · Pure Mechanics
Motion-controlled tennis, bowling, golf, baseball and boxing built around simple swing gestures.
Mario & Sonic at the London 2012 Olympic Games leans Execution (Twitch Chaos); Wii Sports leans Execution (Pure Mechanics).
Mario & Sonic at the London 2012 Olympic GamesWii Sports
Axis by axis
Execution5 vs 6
Wii Sports leans a little harder on execution, though the gap is small.
Mario & Sonic at the London 2012 Olympic Games
Waggle timing and button rhythm decide each event
Wii Sports
Motion swing timing and accuracy decide every event
Reads2 vs 2
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mario & Sonic at the London 2012 Olympic Games
Party opponents are barely predictable or worth predicting
Wii Sports
Casual local opponents add light mind games
Variance3 vs 2
Mario & Sonic at the London 2012 Olympic Games leans a little harder on variance, though the gap is small.
Mario & Sonic at the London 2012 Olympic Games
Event RNG and motion-control noise add slop
Wii Sports
Minor physics wobble and CPU behaviour randomness
Optimization2 vs 3
Wii Sports leans a little harder on optimization, though the gap is small.
Mario & Sonic at the London 2012 Olympic Games
Per-event tricks are learned in minutes
Wii Sports
Simple technique tricks like bowling spin are learnable
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.