@takashichea: Yeah Jason absolutely wrecks these two in both scenarios. In terms of ranged combat he constantly fights bullet timers and peak humans and even gave Batman a hard time. Spike and Revy would never hit Jason with their gunfire. In addition he should be much smarter than them given his teachings under Batman and even outsmarting Dick Grayson and Tim Drake and multiple occasions so even Spike's cunning wont save them.
In an upclose fight, even working together Jason mangles them both without effort, the guy was fighting metahumans barehanded, holding his own against Batman and Nightwing (Albeit Batman was holding back but even a restrained Batman is way above Revy or spike in terms of combat) not to mention Spike only jeet kun do and Revy is more or less a brawler, Jason had roughly the same upbringing as Revy and was an experienced brawler as a kid, he now knows multiple styles of martial arts from Batman and constantly fights against fighters of various disciplines. The guys fights trained assassins on a daily basis. So yeah the team has no chance here. Not complaining since jason is one of my favorites after Wildcat. Off topic: how have you never seen Cowboy Bebop!? O.o