Arbuckle is a comic strip that intentionally rips off Garfield.
In fact, "Arbuckle" is just "Garfield" comic strips redrawn with the thought bubbles (from Garfield) removed. The result?
"Garfield" changes from being a comic about a sassy, corpulent feline, and becomes a compelling picture of a lonely, pathetic, delusional man who talks to his pets.
Here, for example, is the original Garfield:
And now the Arbuckle version: