Epics are interesting basses. They are set neck and some people really like that. It's a matter of choice, of course. I like the neck throughs, but some people think the set necks are a little punchier.
I believe that Spoilers and Persuaders are more similar to each other than either are to the Epic. I would judge those one their specific qualities as it might be difficult to make generalizations about them. The big difference that I can see are the pickup shapes with the Persuader having P and J shaped pickups. If it were me, I'd probably go for the Spoiler, but if the Persuader had woods I was really into, I might go for that, instead. I doubt you could go wrong.