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

Execution · Light / Casual
A deliberately trivial chase advergame testing only basic steering.

Execution · Light / Casual
A casual licensed action game testing little beyond light co-op coordination.
Dash of Destruction leans Execution (Light / Casual); Harry Potter and the Goblet of Fire leans Execution (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dash of Destruction
Simple steering is the only demand, deliberately easy
Harry Potter and the Goblet of Fire
Simple co-op spell casting with generous timing
Dash of Destruction leans a little harder on reads, though the gap is small.
Dash of Destruction
Chase AI barely reacts; local human play adds a sliver
Harry Potter and the Goblet of Fire
Enemies are fixed waves, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dash of Destruction
City layouts are fixed and tiny
Harry Potter and the Goblet of Fire
Collectible bean locations are fixed
Harry Potter and the Goblet of Fire leans a little harder on optimization, though the gap is small.
Dash of Destruction
Routes are learned in minutes by design
Harry Potter and the Goblet of Fire
Light card collection and spell upgrade choices
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.