The worst count of this type was published in MAGIC a few months back. Can't recall to whom it belonged but it was very bad.
I don't care for the rhumba count very much either but it has its place, I suppose.
I agree with what others have said about the flushtration count being that it is best as a casual convincer when you are supposed to be holding like cards anyway, Ie. two jokers.
For most everything else I prefer the diminishing lift or variations thereof.