My favorite perfume was Salty Rage. It's in FFT and WOTL (PSP). It was because it gave Protect and Shell. I liked it even more so than Chantage, which gave Regen and Auto-Raise. There was also another that gave Haste, but I never needed it.

Spoiler:
You steal Chantage from the same Temple Knight, Meliadoul, you steal Defender from. This is before you get her in the party with Save the Queen, after defeating Elmdor.


Another favorite of mine would probably also be whatever Anne Hathaway wears.