head to head
Neither is simply harder - they are hard in different places. Championship Manager 2008 demands more reads; Fallout: New Vegas demands more execution.

Optimization · Pure Optimization
A football management sim about building squads and optimizing tactics against variance.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Championship Manager 2008 leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Championship Manager 2008
Menu management requires no physical skill
Fallout: New Vegas
Shooter inputs with VATS assist
Championship Manager 2008 leans clearly harder on reads.
Championship Manager 2008
Opponent AI tactics are somewhat predictable patterns
Fallout: New Vegas
Scripted factions and enemies
Championship Manager 2008 leans clearly harder on variance.
Championship Manager 2008
Match results and injuries carry significant randomness
Fallout: New Vegas
Some loot and crit RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Championship Manager 2008
Squad building, tactics and transfers are the deep core
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.