Yeah, at this point I've tested about 70 fans (unique fans...if you count all the duplicates and all the ones for my own uses, it's nearly 100 fans).

No doubt each design point has an influence and there have been advances. But simply, there's no magic fan. There's no fan that's leaps and bounds better than everything else (it would be mimicked immediately anyway). There are, however, fans that are magically bad (ironically, they're usually the ones that proclaim superiority--this Cooler Master might count as that bad....the SilenX are definitely in that category at least).

RPM can tell you so many things. Or at least tell so many things it's not.