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

Execution · Practiced Mastery
Planning approaches with recon tools, then executing them under lethal fire.

Execution · Competitive PvP
Simulation-styled WWE entry praised for its showcase mode and refined reversal-based combat.
Tom Clancy's Ghost Recon Advanced Warfighter leans Execution (Practiced Mastery); WWE 2K19 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.
Tom Clancy's Ghost Recon Advanced Warfighter
Lethal firefights punish sloppy aim and exposure
WWE 2K19
Reversal timing windows and combo execution
WWE 2K19 leans a little harder on reads, though the gap is small.
Tom Clancy's Ghost Recon Advanced Warfighter
Multiplayer squads outflank and adapt to your habits
WWE 2K19
Human versus matches hinge on counter prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tom Clancy's Ghost Recon Advanced Warfighter
Enemy placements are scripted-but-unknown on first attempt
WWE 2K19
Slight randomness in pin kick-outs and AI
Tom Clancy's Ghost Recon Advanced Warfighter leans a little harder on optimization, though the gap is small.
Tom Clancy's Ghost Recon Advanced Warfighter
Drone recon, squad orders and approach planning decide missions
WWE 2K19
Payback systems, move-set knowledge and MyPlayer builds
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.