I don't think you're likely to find consensus on a "CPU element" (aka waterblock).
In Aussieland, it's either the Cyclone or Cathar's "white river". In the US, many people are partial to DangerDen. In Europe, well there are quite a few! The late comer is Atlantis and Neptune. There are also a nice series from Germany.
Personally, I prefer "Radius"...
For those who missed it, here's
Stepback's thread