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

Execution · Competitive PvP
Stick-skill football where beating a human means out-predicting their habits.

Execution · Competitive PvP
Arcade tennis with timing-based PvP mind games.
FIFA 14 leans Execution (Competitive PvP); Mario Tennis Aces leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 14
First-touch timing, dribbling and finishing are mechanical skill
Mario Tennis Aces
Shot timing, charge mechanics, footwork
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
Mario Tennis Aces
Online tennis demands reading opponent placement
FIFA 14 leans a little harder on variance, though the gap is small.
FIFA 14
Deflections, refs and ball physics add match-level chaos
Mario Tennis Aces
Mostly deterministic ball physics
FIFA 14 leans a little harder on optimization, though the gap is small.
FIFA 14
Formations, squad building and meta tactics sit underneath
Mario Tennis Aces
Character matchups and tech routes
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.