It's a toss up between Comic Sans and Papyrus.
I lean heavily on Letterhead fonts, Signfonts, and SignDNA. Between the three I have purchased over 200 of them along with a ton of fonts that come with Corel. I don't use fonts because I have a favorite one. I use what is appropriate for the specifics of the sign I'm designing for. The right choice in font can make all the difference in the world with regards to design.