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 · Practiced Mastery
A near-future Call of Duty with squad-focused multiplayer and the Extinction mode.

Execution · Practiced Mastery
Planning tactical approaches and executing careful shots where mistakes are lethal.
Call of Duty: Ghosts leans Execution (Practiced Mastery); Tom Clancy's Ghost Recon Advanced Warfighter 2 leans Execution (Practiced Mastery).
Call of Duty: Ghosts leans a little harder on execution, though the gap is small.
Call of Duty: Ghosts
Fast time-to-kill rewards first-shot aim
Tom Clancy's Ghost Recon Advanced Warfighter 2
Accurate shooting under lethal fire still decides firefights
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Ghosts
Outguessing human routes and peeks matters
Tom Clancy's Ghost Recon Advanced Warfighter 2
Multiplayer rewards predicting human positioning; campaign AI is scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Ghosts
Spawns and lobby matchups add noise
Tom Clancy's Ghost Recon Advanced Warfighter 2
Unknown enemy placements punish first attempts
Tom Clancy's Ghost Recon Advanced Warfighter 2 leans a little harder on optimization, though the gap is small.
Call of Duty: Ghosts
Loadout and map knowledge are solvable layers
Tom Clancy's Ghost Recon Advanced Warfighter 2
Squad orders, drone recon and approach planning carry the campaign
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.