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
Stick-skill shot timing layered over reading human opponents and exploiting matchup math.

Execution · Competitive PvP
Weapon-spacing execution and live conditioning battles against human opponents.
NBA 2K19 leans Execution (Competitive PvP); SoulCalibur V 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.
NBA 2K19
Shot timing, dribble moves and defense sticks decide possessions
SoulCalibur V
Spacing, step timing and just-frame inputs reward trained hands
SoulCalibur V leans a little harder on reads, though the gap is small.
NBA 2K19
Online opponents adapt plays and baiting constantly
SoulCalibur V
Versus humans, conditioning and throw-versus-mid guessing decides rounds
NBA 2K19 leans a little harder on variance, though the gap is small.
NBA 2K19
Shot RNG adds noise around the timing meter
SoulCalibur V
Nothing hidden beyond the opponent's intent
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
NBA 2K19
Playbooks, matchups and build optimisation underpin wins
SoulCalibur V
Frame data, matchup study and ring positioning are deep homework
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.