Back on topic real quick:
For me, it's a tie between Drolefille and AlphaFrog.
AlphaFrog is always straightforward and upfront, no matter how it sounds. Cuz, I have also been known to sound ueber bitchy without intending too.
And, Drolefille, because whatever pops into her head just comes rolling right on out. I tend to have that problem in real life, but my thoughts never make it to the message boards.