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.

Execution · Practiced Mastery
A hand-drawn western take on Hotline Miami where you cock the revolver before every single shot.

Execution · Pure Mechanics
A classic side-scrolling platformer following Aladdin through Agrabah and beyond.
12 is Better Than 6 leans Execution (Practiced Mastery); Aladdin 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.
12 is Better Than 6
One-hit deaths, manual cocking, fast top-down aim
Aladdin
Precise platforming jumps and sword-timing are demanding.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
12 is Better Than 6
Enemies are placed and scripted
Aladdin
No adaptive opponent, fixed enemy patterns.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
12 is Better Than 6
Unknown enemy placements on first attempts only
Aladdin
Some randomness in enemy placement and drops.
12 is Better Than 6 leans a little harder on optimization, though the gap is small.
12 is Better Than 6
Each room becomes a learnable clear order
Aladdin
Level routes are learnable but execution dominates.
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.