he should be better then batman, but of course like they said batman is like the captian america of the DC his jobber aura helps him in any and all situations at least for a time being is slade as fast as the flash umm i dont know ive read he chased down a speedster once, he also has been fast enough to take down other flashes, he has K.O'd superboy and supergirl has he not, didnt he also drop a building on aquaman, the identity crisis wasnt pure pis, if he's fast enough he could certainly put zatanna down with a punch to shut her up, same with the bird of pray chick, and if he has the proper weaponry he can cut hawkman or girls wings, defeating kyle rayner with his GL ring is pure bull but then again if you think about it its the will that controlls the GL ring if someone has a strong enough will they can overcome it im sure slade has a pretty strong will, also green arrow thought slade was enough of a threat that he took MONTHS of prep to take him down and even then slade tricked him, the guy is really smart.