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

Optimization · Pure Optimization
Open-ended puzzles testing vocabulary-driven creative problem-solving more than any reflex.

Optimization · Pure Optimization
Comedy adventure puzzles solved by matching the right sticker to the right head.
Scribblenauts Unlimited leans Optimization (Pure Optimization); Stick it to the Man! leans Optimization (Pure Optimization).
Stick it to the Man! leans a little harder on execution, though the gap is small.
Scribblenauts Unlimited
Typing words is the only physical demand
Stick it to the Man!
Simple platforming with no twitch ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Scribblenauts Unlimited
Puzzle NPCs are static requests, not minds
Stick it to the Man!
Mind-reading is a story device, not opponent modelling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Scribblenauts Unlimited
Puzzles are visible; nothing meaningful is hidden
Stick it to the Man!
Every gag and sticker puzzle is scripted
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Scribblenauts Unlimited
Finding objects that satisfy puzzle constraints is creative problem-solving
Stick it to the Man!
Matching stickers to puzzle locks is the core test
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.