Skarner's annoying, but that's about it. With a couple small buffs he'd be strong-ish, IMO. Not a jungler, though. Weak sustain without blue buff, poor closing ability, melee range disable. Compare: Xin (better closing ability, better sustain), GP (ranged disable, group closing ability), Nunu (better sustain and disable). I suppose if for some BIZARRE reason you needed a tanky hybrid DPS jungler, I think he's the best. Uh. When that'd ever come up, though, I dunno.
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assert(!hotterThan(foo, "Hot Nymphomaniacal Lesbian Mind-Controlling Dominatrix Fairy Doctors with glasses"))