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.

Reads · Grand Arena
A DC fighter where Clash wager mind-games and character-specific stage interactions add layers to the competitive match.

Execution · Competitive PvP
The fourth Soulcalibur adds armor-breaking Soul Gauge pressure and Critical Finishes to its weapon dueling.
Injustice: Gods Among Us leans Reads (Grand Arena); Soulcalibur IV 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.
Injustice: Gods Among Us
Wager and clash system adds readable but executable decision points
Soulcalibur IV
Step-guard and just-guard timing keep a real physical ceiling.
Injustice: Gods Among Us leans a little harder on reads, though the gap is small.
Injustice: Gods Among Us
Clash wager reads and opponent pattern prediction against humans
Soulcalibur IV
Critical Finish threats add layers to adaptive mixup guessing.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Injustice: Gods Among Us
No RNG; match flow is transparent
Soulcalibur IV
Soul Gauge is visible; no hidden info.
Injustice: Gods Among Us leans a little harder on optimization, though the gap is small.
Injustice: Gods Among Us
Character tier matchups and stage interaction abuse reward study
Soulcalibur IV
Guard-crush pressure routes and frame data 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.