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

Optimization · Pure Optimization
Scheduling scarce time and resources across a base run by copies of yourself.

Optimization · Pure Optimization
Advancing a colonial island through history while optimizing production and appeasing fixed-script factions.
The Alters leans Optimization (Pure Optimization); Tropico 5 leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
The Alters
Third-person walking and menus, no twitch demands
Tropico 5
Interface-driven play with no physical execution ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Alters
No adaptive opponent, only systems and story beats
Tropico 5
Factions and superpowers follow scripted logic
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Alters
Unscouted events and alter reactions surprise first runs
Tropico 5
War outcomes and election swings carry hidden randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Alters
Time, resource and crew scheduling under deadlines is the game
Tropico 5
Era progression and economic chains reward systematic 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.