I dunno... I've only read Filler Bunny, Squee!, and I Feel Sick, so I've only read about half of Jhonen's work, missing out completely on the Johnny The Homicidal Maniac series, so I can't claim to be an expert on everything he's done.
There's only one Bone book though? Oh, cool. I'll have to pick that up sometime, then.
Now watch me become morbidly obese!