Sweet Tooth (Twisted Metal) vs. The Joker (Batman series)
Sweet Tooth drives to Arkham Asylum alone and marches in with a head of usual homicidal steam. Joker is unaware of Sweet Tooth's arrival, and thus, has no contingency plans for him (such as traps being set up around the asylum). He also can't call upon his followers, as they have all been brutally cut down by Sweet Tooth. Reasonably, Sweet Tooth cannot at any time return to his vehicle or call upon his crew, as they are not there. They will both meet face-to-face just before the battle with twenty feet of separation. Both will use familiar equipment and tactics for the battle, be they direct or indirect. Who stands as victor in this dual of relentlessly homicidal, coulrophobia inducing psychopaths?