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
The fourth Soulcalibur adds armor-breaking Soul Gauge pressure and Critical Finishes to its weapon dueling.

Execution · Competitive PvP
Twitch ball control plus constant prediction of human defenders on known maps.
Soulcalibur IV leans Execution (Competitive PvP); TagPro 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.
Soulcalibur IV
Step-guard and just-guard timing keep a real physical ceiling.
TagPro
Ball handling, boosts and juke precision decide grabs
Soulcalibur IV leans a little harder on reads, though the gap is small.
Soulcalibur IV
Critical Finish threats add layers to adaptive mixup guessing.
TagPro
Human defenders adapt to your routes every match
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Soulcalibur IV
Soul Gauge is visible; no hidden info.
TagPro
Maps and power-up timers are fully visible
Soulcalibur IV leans a little harder on optimization, though the gap is small.
Soulcalibur IV
Guard-crush pressure routes and frame data are studyable.
TagPro
Map routes, button plays and power-up timing 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.