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 · Light / Casual
A branching visual novel that tests little beyond exploring choice routes.

Variance · Light / Casual
A Key visual novel about found family and baseball, with minigames feeding a devastating true route.
Everlasting Summer leans Optimization (Light / Casual); Little Busters! leans Variance (Light / Casual).
Little Busters! leans a little harder on execution, though the gap is small.
Everlasting Summer
Reading and clicking choices, nothing physical
Little Busters!
Light minigames: baseball practice, battle ranker
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Everlasting Summer
No opponent - characters follow fixed branching scripts
Little Busters!
Minigame rivals are scripted
Little Busters! leans a little harder on variance, though the gap is small.
Everlasting Summer
Route outcomes are hidden only until first playthroughs
Little Busters!
Hidden route gates and randomized minigame events
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Everlasting Summer
Mapping choice branches to endings is trivially solvable
Little Busters!
Route order and flag management toward Refrain
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.