Xena of Amphipolis, aka the Warrior Princess, is indeed my favourite fictional character.
(For the record, her character wasn’t actually a princess, which I like better now that I’m well past the age of 5 and its pervasive draw to all things “princess”.)
The show Xena Warrior Princess aired while I was in high school and university, from 1995-2001.
I’m not sure how it was I came to discover it or its two companion shows, Hercules: The Legendary Journeys and The Adventures of Sinbad, but all three quickly became part of my Saturday afternoon routine. Xena was always my favourite.