head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Competitive PvP
On-the-ball flair and one-on-one deception in small-sided street matches.

Execution · Competitive PvP
Arcade punch timing with counter prediction in human bouts.
FIFA Street leans Execution (Competitive PvP); Ready 2 Rumble Boxing 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.
FIFA Street
Flair moves and trick timing decide 4-on-4 duels
Ready 2 Rumble Boxing
Punch timing, dodges and rumble combos reward quick hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Street
Beating a human marker is feint-versus-anticipation
Ready 2 Rumble Boxing
Human bouts become feint-and-counter prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Street
Compact courts keep outcomes deterministic
Ready 2 Rumble Boxing
Nothing hidden once boxers are learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA Street
Reputation grind and team building are light systems
Ready 2 Rumble Boxing
Boxer matchups and rumble meter use are quickly mapped
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.