head to head
Ratchet & Clank: Full Frontal Assault asks more than Brütal Legend, and the gap is execution.

Optimization · Practiced Mastery
Tim Schafer's heavy-metal open world that morphs into RTS-style stage battles.

Execution · Practiced Mastery
Shooter-platforming crossed with base defense, testing weapon execution and turret planning.
Brütal Legend leans Optimization (Practiced Mastery); Ratchet & Clank: Full Frontal Assault leans Execution (Practiced Mastery).
Ratchet & Clank: Full Frontal Assault leans clearly harder on execution.
Brütal Legend
Hack-and-slash combat is forgiving
Ratchet & Clank: Full Frontal Assault
Weapon juggling and movement carry the defense waves
Ratchet & Clank: Full Frontal Assault leans a little harder on reads, though the gap is small.
Brütal Legend
Multiplayer stage battles pit you against adapting commanders
Ratchet & Clank: Full Frontal Assault
Competitive raids against humans reward predicting attack lanes
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Brütal Legend
Unit skirmish chaos adds noise
Ratchet & Clank: Full Frontal Assault
Wave compositions are mostly known after few runs
Brütal Legend leans a little harder on optimization, though the gap is small.
Brütal Legend
Stage-battle economy and unit counters reward strategy
Ratchet & Clank: Full Frontal Assault
Turret placement and node economy are plannable systems
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.