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 fastest mainline Souls, distilling the formula into aggressive boss duels.

Execution · Practiced Mastery
A circuit racing simulator where consistent lap-time execution and car setup decide everything.
Dark Souls III leans Execution (Practiced Mastery); Forza Motorsport 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.
Dark Souls III
fast roll timing against aggressive scripted bosses
Forza Motorsport
Lap-time precision: braking points, apexes, throttle discipline
Forza Motorsport leans a little harder on reads, though the gap is small.
Dark Souls III
PvP invasions exist but are optional
Forza Motorsport
Racecraft against humans matters but is secondary
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dark Souls III
fixed encounters converge after first sight
Forza Motorsport
Little randomness beyond grid position
Dark Souls III leans a little harder on optimization, though the gap is small.
Dark Souls III
movesets and builds are fully mappable
Forza Motorsport
Setup tuning and tire/fuel strategy are deeply 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.