head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Optimization · Pure Optimization
Tower-defense loadout math wearing an Adventure Time crossover costume.

Optimization · Pure Optimization
An open-ended needs-and-money system that rewards efficient scheduling.
Bloons Adventure Time TD leans Optimization (Pure Optimization); The Sims 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.
Bloons Adventure Time TD
Tower placement and occasional ability taps
The Sims
Clicking menus has no physical ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bloons Adventure Time TD
Bloon rushes follow fixed wave scripts
The Sims
Sims run need-driven scripts, not minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bloons Adventure Time TD
Character trinket drops add light collection RNG
The Sims
Event rolls add flavour, all quickly mapped
Bloons Adventure Time TD leans a little harder on optimization, though the gap is small.
Bloons Adventure Time TD
Hero, allies and trinket loadout math drives every map
The Sims
Need scheduling, career grinding and money loops are solvable
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.