I was gonna say, maybe he's not such hot stuff as a sweeper anymore for all those reasons, but what about a lead set? :0
Aron @ Oran / Custap (?)
Adamant / Sturdy
196 Atk / 196 Spe, etc etc.
- Stealth Rock
- Protect
- Rock Slide / Metal Burst
- Level Ground / Metal Burst
Stealth Rock is Stealth Rock and Protect blocks Fake Out. Rock Slide would be for STAB, since Head Smash essentially kills you when you have Sturdy; Metal Burst with Sturdy, again obvious... Level Ground is what strikes me as an interesting move on him. For those that remember the Piplup analysis, I see it working sort of like Icy Wind worked on that, slowing stuff down enough for Aron to outspeed and KO with Rock Slide, or to get Rocks up first or something. (lack of priority combined with SturdyBurst kind of sucks. >.>) Of course, against leads like Meowth who have crappy coverage on Steels, it will always win, since it can Protect to block the fake out (or not, whatever really) and set up SR freely.
I'll need to experiment with some move combinations to see what works best, but there you go. That seem viable at all?