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 · Pure Mechanics
Pure car control over loose surfaces, sharpened by memorising every stage.

Execution · Pure Mechanics
High-speed trick execution along optimised lines down fixed mountains.
Colin McRae Rally 2.0 leans Execution (Pure Mechanics); SSX leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae Rally 2.0
Surface-specific car control at speed decides every stage
SSX
Trick timing, landings and line control at speed are everything
SSX leans a little harder on reads, though the gap is small.
Colin McRae Rally 2.0
Time-trial format - no adaptive opponent on the stage
SSX
Rival AI racers are aggressive but mappable
Colin McRae Rally 2.0 leans a little harder on variance, though the gap is small.
Colin McRae Rally 2.0
Mid-stage surprises minimal once pace notes are internalised
SSX
Courses are fixed once learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae Rally 2.0
Memorising stages and tuning setups converges times steadily
SSX
Optimal trick lines and shortcut routing maximise score
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.