One big factor of Larvesta's high usage this month was that Mienfoo was so common, and at the time didn't run Stone Edge commonly at all. This only started to change near the end of the month, after Larvesta became popular. I'm not denying that it also makes a very good check to other Fighting-types like Croagunk, as well as Snover (and other Grass-types), but it was primarily used for Mienfoo. My advice now would be to take advantage of Mienfoo being "forced" to run Stone Edge. Gastly is a better stop to it than ever, because it's increasingly harder to fit in Payback, and you can just spam Substitute until they miss with Stone Edge or switch out. I'm sure there are a bunch of other examples, but I'm kind of strapped for time so I'll either leave them for you to figure out or just start using them myself later.
Regardless, I think banning Mienfoo for being "overcentralizing" is absolutely ridiculous. We don't ban Pokemon because we don't like them, especially when everyone in this thread discussing a Mienfoo ban has mentioned themselves that they don't feel Mienfoo is really too strong. Instead of complaining about it, go change the metagame by making teams that Mienfoo can't walk all over... or at the very least stop bitching about it, because that's not going to change a thing.