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

Execution · Practiced Mastery
Comedy FPS where talking guns crack jokes through an alien bounty-hunting romp.

Execution · Practiced Mastery
Shooting patterned alien swarms with creative destruction tools down linear tunnels.
High on Life leans Execution (Practiced Mastery); Red Faction: Armageddon leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
High on Life
Standard FPS aim and movement gadgets
Red Faction: Armageddon
Standard third-person aiming with magnet-gun flair
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
High on Life
Bounty targets are scripted bosses
Red Faction: Armageddon
Alien swarms attack on spawn scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
High on Life
Fixed encounters and levels
Red Faction: Armageddon
Linear underground campaign, little randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
High on Life
Gun ability combos and exploration upgrades
Red Faction: Armageddon
Weapon upgrade picks and destruction tactics reward planning
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.