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
Large-scale modern combined-arms shooter built on destructible maps and squad teamwork.

Execution · Competitive PvP
An American football sim mixing stick execution with play-calling mind games versus opponents.
Battlefield 3 leans Execution (Competitive PvP); NFL 2K3 leans Execution (Competitive PvP).
Battlefield 3 leans a little harder on execution, though the gap is small.
Battlefield 3
Gunplay, suppression management, and vehicle piloting
NFL 2K3
Stick control of players demands timing and reaction
NFL 2K3 leans a little harder on reads, though the gap is small.
Battlefield 3
Human teams adapt routes and armor pushes
NFL 2K3
Play-calling against human opponents is constant prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 3
Spawns, destruction, and vehicle drops shuffle engagements
NFL 2K3
Fumbles and bounces inject randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 3
Unlock paths, class synergy, and map control
NFL 2K3
Playbook knowledge and matchups reward study
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.