1. The original Inferno.
2. (tie) All of the other Infernos.
To me, the original is versatile; I can make it work on a range of conditions from medium-heavy to fairly dry. IME the rest of the Infernos are much more condition-specific.
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"Dispensing conventional wisdom to a fingertip world."
Horrid in Doubles, torrid in Singles...
...that's The Curse of Dusty.