head to head
WWE 2K15 asks more than Drunken Wrestlers 2, and the gap is optimization.

Execution · Pure Mechanics
A physics-based wrestling brawler about controlling ragdoll combat against opponents.

Execution · Competitive PvP
Reversal timing and pacing against an opponent baiting your counters.
Drunken Wrestlers 2 leans Execution (Pure Mechanics); WWE 2K15 leans Execution (Competitive PvP).
Drunken Wrestlers 2 leans a little harder on execution, though the gap is small.
Drunken Wrestlers 2
physics-based ragdoll control precision
WWE 2K15
Reversal timing windows decide most exchanges
WWE 2K15 leans a little harder on reads, though the gap is small.
Drunken Wrestlers 2
predicting human opponent's wrestling moves
WWE 2K15
Human opponents bait reversals and vary move timing
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Drunken Wrestlers 2
physics ragdoll randomness affects outcomes
WWE 2K15
Chain-wrestling rock-paper-scissors minigames add randomness
WWE 2K15 leans clearly harder on optimization.
Drunken Wrestlers 2
minimal, mostly reflexive physical play
WWE 2K15
Move sets, stamina and match pacing are learnable systems
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.