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
MMA fighting sim where feints and stamina discipline decide layered striking and grappling exchanges.

Execution · Competitive PvP
Classic fighting execution and human prediction atop a famously unbalanced roster.
EA Sports UFC 4 leans Execution (Competitive PvP); Mortal Kombat Trilogy 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.
EA Sports UFC 4
Strike timing, head movement, and grapple inputs
Mortal Kombat Trilogy
Dial-a-combo inputs and run-meter pressure demand fast hands
EA Sports UFC 4 leans a little harder on reads, though the gap is small.
EA Sports UFC 4
Feinting and baiting adaptive human opponents
Mortal Kombat Trilogy
Human opponents must be baited into unsafe moves
EA Sports UFC 4 leans a little harder on variance, though the gap is small.
EA Sports UFC 4
Little hidden information in the octagon
Mortal Kombat Trilogy
Movesets are public; nothing hidden in a match
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
EA Sports UFC 4
Stamina management and matchup game-planning
Mortal Kombat Trilogy
Knowing the bloated roster's broken tech is half the battle
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.