Finding a Favorite Font

What makes a font a favorite? Is it one you use all the time because it's versatile or dependable? How about because it's used in a tattoo that has personal meaning? Recently Jacob Cass tweeted about designers favorite fonts. He's blogged some replies. Check out this list of Designer's Favourite Fonts & Why that includes a lot of classics and what I hope is a tongue-in-cheek entry... because "it makes everything patronising."

And do answer that question I first asked. What makes a font a favorite, for you? On my list of favorites are mostly fonts I turn to over and over. But there are also a few that I don't use much -- hardly ever -- but I'm drawn to them nonetheless. They're quirky or beautiful. I just haven't found a project worthy of them.