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
Tests shot timing and faking out human defenders amid item-driven chaos.

Reads · Competitive PvP
Modern Worms with crafting and vehicles, keeping the classic turn-based destructible-terrain warfare.
Mario Strikers Charged leans Execution (Competitive PvP); Worms W.M.D leans Reads (Competitive PvP).
Mario Strikers Charged leans a little harder on execution, though the gap is small.
Mario Strikers Charged
Timing tackles, charged shots and goalie deflections needs quick hands
Worms W.M.D
Shot arcs, rope swings and vehicle control demand precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Strikers Charged
Versus humans, faking shots and baiting tackles drives goals
Worms W.M.D
Multiplayer turns hinge on out-guessing rival worm placement
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Strikers Charged
Items and stage hazards inject swingy chaos into matches
Worms W.M.D
Wind, crates and random terrain reshape options
Worms W.M.D leans a little harder on optimization, though the gap is small.
Mario Strikers Charged
Captain abilities and team builds reward knowing the systems
Worms W.M.D
Crafting and weapon budgeting reward planned turns
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.