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 · Competitive PvP
A platform fighter where reading opponents and precise execution both drive victory.

Execution · Competitive PvP
The classic 'dream match' team fighter widely held as KOF's most balanced competitive entry.
Super Smash Bros. for Nintendo 3DS leans Execution (Competitive PvP); The King of Fighters '98 leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Super Smash Bros. for Nintendo 3DS
precise inputs and combo execution required
The King of Fighters '98
Strict inputs, short hops, tight punishes
The King of Fighters '98 leans a little harder on reads, though the gap is small.
Super Smash Bros. for Nintendo 3DS
reading opponent habits and mixups
The King of Fighters '98
Human opponents constantly adapt and condition you
Super Smash Bros. for Nintendo 3DS leans a little harder on variance, though the gap is small.
Super Smash Bros. for Nintendo 3DS
item spawns add randomness
The King of Fighters '98
Near-fully visible game state
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Super Smash Bros. for Nintendo 3DS
matchup knowledge and combos solvable
The King of Fighters '98
Team order and matchup theory reward study
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.