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 · Grand Arena
A football sim testing play-calling prediction, stick execution, and scheme knowledge.

Execution · Competitive PvP
Football sim testing execution and opponent reading under a studied tactical meta.
EA Sports College Football 26 leans Execution (Grand Arena); FIFA 21 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.
EA Sports College Football 26
Stick skills on passes, jukes and tackles decide plays
FIFA 21
Skill moves and finishing mechanics demand practiced hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
EA Sports College Football 26
Online play hinges on out-guessing the opponent's play calls
FIFA 21
Outguessing a human's defensive shape and attacking patterns is central
FIFA 21 leans a little harder on variance, though the gap is small.
EA Sports College Football 26
Dice-roll animations and recruiting outcomes add noise
FIFA 21
Deflections, finishing RNG and pack luck colour outcomes
EA Sports College Football 26 leans a little harder on optimization, though the gap is small.
EA Sports College Football 26
Scheme knowledge and roster management are deep study layers
FIFA 21
Meta formations, custom tactics and squad building are studied deeply
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.