Rouge

Rouge is defined by Webster's Dictionary as:
 * 1) Any of various cosmetics for coloring the cheeks or lips red.
 * 2) A red powder consisting essentially of ferric oxide used in polishing glass, metal, or gems and as a pigment.

Talent trees

 * Mary Kay is a popular spec for PvE/soloing.
 * Revlon is considered *the* Raid spec.
 * Max Factor is often used for PvP.

Conclusion
Rouges are by far the most overpowdered class. But note the lack of anything regarding Stealth, Pickpocketing, Lockpicking, or high DPS. Oh, did we mention that a "rouge" is a dyslexic rogue?