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 · Competitive PvP
Football stick execution and opponent reading, salted with bounce-of-the-ball luck.

Execution · Practiced Mastery
A soccer game about passing, shooting and outmaneuvering opposing players.
FIFA Soccer 07 leans Execution (Competitive PvP); World Trophy Soccer leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Soccer 07
Stick skills and timing on passes and finishing
World Trophy Soccer
Passing, dribbling and shot timing drive the on-field play
FIFA Soccer 07 leans a little harder on reads, though the gap is small.
FIFA Soccer 07
Versus humans, baiting tackles and disguising attacks matters
World Trophy Soccer
Human versus matches reward reading opponent positioning
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Soccer 07
Deflections and keeper randomness swing single matches
World Trophy Soccer
Ball physics and AI add modest unpredictability
World Trophy Soccer leans a little harder on optimization, though the gap is small.
FIFA Soccer 07
Formations and exploit patterns are learnable meta
World Trophy Soccer
Team selection and tactical play offer some depth
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.