head to head
Neither is simply harder - they are hard in different places. Super Mario Odyssey demands more execution; WWF SmackDown! Just Bring It demands more reads.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.

Execution · Pure Mechanics
Grapple and reversal timing with light mindgames against human opponents.
Super Mario Odyssey leans Execution (Pure Mechanics); WWF SmackDown! Just Bring It leans Execution (Pure Mechanics).
Super Mario Odyssey leans clearly harder on execution.
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
WWF SmackDown! Just Bring It
Grapple timing and reversal windows decide matches
WWF SmackDown! Just Bring It leans clearly harder on reads.
Super Mario Odyssey
No adaptive opponents whatsoever.
WWF SmackDown! Just Bring It
Human opponents invite light reversal mindgames
WWF SmackDown! Just Bring It leans a little harder on variance, though the gap is small.
Super Mario Odyssey
Almost no randomness in level design.
WWF SmackDown! Just Bring It
Weapon spawns and AI interference add small chaos
Super Mario Odyssey leans clearly harder on optimization.
Super Mario Odyssey
Moon routes and movement tech learnable.
WWF SmackDown! Just Bring It
Move-set knowledge and match-type tactics are quickly learned
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.