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
Stick-skill football where beating a human means out-predicting their habits.

Execution · Competitive PvP
AKI-engine N64 wrestler that perfected the grapple system later refined in No Mercy.
FIFA 14 leans Execution (Competitive PvP); WCW/nWo Revenge leans Execution (Competitive PvP).
FIFA 14 leans a little harder on execution, though the gap is small.
FIFA 14
First-touch timing, dribbling and finishing are mechanical skill
WCW/nWo Revenge
AKI grapple timing and reversal windows
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 14
Online opponents adapt their defending and attacking patterns
WCW/nWo Revenge
Human opponents turn reversals into prediction duels
FIFA 14 leans a little harder on variance, though the gap is small.
FIFA 14
Deflections, refs and ball physics add match-level chaos
WCW/nWo Revenge
Slight randomness in momentum swings
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 14
Formations, squad building and meta tactics sit underneath
WCW/nWo Revenge
Learning rosters' move sets and spirit flow converges
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.