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 PvP-centric MMO where aerial execution and reading opponents in Abyss battles define competitive performance.

Optimization · Practiced Mastery
Classic RTS that polished Warcraft's formula with naval combat, air units and beloved multiplayer.
Aion leans Execution (Practiced Mastery); Warcraft II: Tides of Darkness leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Aion
Aerial combat and combo chaining require timing and positioning
Warcraft II: Tides of Darkness
Faster micro across land, sea and air units
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Aion
Rifting and Abyss PvP feature real adaptive opponents
Warcraft II: Tides of Darkness
Multiplayer scouting wars and build feints
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Aion
Enchantment stone RNG is a meaningful hidden-information layer
Warcraft II: Tides of Darkness
Fog of war conceals enemy tech and armies
Warcraft II: Tides of Darkness leans a little harder on optimization, though the gap is small.
Aion
Manastones and gear sets have well-known optimal configurations
Warcraft II: Tides of Darkness
Refined build orders and upgrade timings are studyable
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.