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

Execution · Practiced Mastery
The original Souls game: scripted boss patterns you solve with builds, routes and disciplined execution.

Execution · Practiced Mastery
A real-time action JRPG where mastering guard cancels and arte combos against scripted enemies defines high-level play.
Demon's Souls leans Execution (Practiced Mastery); Tales of Symphonia leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Demon's Souls
Stamina-timed dodges and parries punish sloppy hands.
Tales of Symphonia
3D combat movement, guard-canceling, and combo timing are central skills
Demon's Souls leans a little harder on reads, though the gap is small.
Demon's Souls
Invasions exist but bosses are scripted patterns.
Tales of Symphonia
All enemy and boss patterns are scripted
Tales of Symphonia leans a little harder on variance, though the gap is small.
Demon's Souls
World tendency and upgrade drops add mild noise.
Tales of Symphonia
Random item drops and some enemy move randomness present
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Demon's Souls
Builds, routes and learned movesets are fully solvable.
Tales of Symphonia
Arte trees, Unison Attacks, and equipment crafting are the optimization layer
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.