head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Competitive PvP
Cover-based shotgun duels testing movement execution and positional prediction in multiplayer.

Execution · Competitive PvP
Tests stylish movement-shooter mechanics against human teams in objective modes.
Gears of War: Ultimate Edition leans Execution (Competitive PvP); S4 League 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.
Gears of War: Ultimate Edition
Wallbounce movement and gnasher duels demand real hands
S4 League
Wall-running movement and aim duels decide exchanges
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War: Ultimate Edition
Multiplayer is constant positional mind-games around cover
S4 League
Human opponents in Touchdown demand constant prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War: Ultimate Edition
Weapon spawns timed and known; spread mildly random
S4 League
Some weapon spread and mode chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War: Ultimate Edition
Map control and spawn timing knowledge structure matches
S4 League
Loadout choices and map knowledge matter underneath
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.