head to head
Fallout: New Vegas asks more than Fable Anniversary, and the gap is optimization.

Optimization · Pure Optimization
A forgiving moral-choice RPG where build and economy decisions outweigh combat skill.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Fable Anniversary leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans a little harder on execution, though the gap is small.
Fable Anniversary
Forgiving combat across melee, ranged and magic
Fallout: New Vegas
Shooter inputs with VATS assist
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fable Anniversary
Bandits and balverines follow fixed scripts
Fallout: New Vegas
Scripted factions and enemies
Fallout: New Vegas leans a little harder on variance, though the gap is small.
Fable Anniversary
Albion is handcrafted and fully learnable
Fallout: New Vegas
Some loot and crit RNG
Fallout: New Vegas leans clearly harder on optimization.
Fable Anniversary
Alignment, build and economy choices are the systems layer
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.