Best CPU cooler to use?

[eclipsezeromh]

I asked this once before last year, (before deciding to wait for Haswell...which seems to be a bit of a disappointment derp) thought I would again just in case anything has changed.
IIRC I got recommended Noctua DH-14 or something, not sure.
Heat is a major problem where I live, therefore having the best possible cooling solution would be great, air based if possible.