Which components are "stupid good"?

I have to include the Vh Audio V/Caps into this group..Though maybe not considered a component,they sure qualify for the " Stupid Good " category...Both the CuTf and the TfTf,are exceptional..It just becomes a matter of
which version Cap best fits your needs.
I tried both versions and ended up with the CuTf caps..Not cheap,but considering the upgrade in performance,they are well worth the price.....