@GuyDudeman oh no! don't decide that 😄
I have read so many. I guess I'd say Gunnerkrigg Court is my favorite. I like following these characters and spending time in their bizarre world of magic and near-magical technology. The art is really good. Not to mention Tom posts *very* regularly: I can't recall a time he's ever missed an upload.
Oh, yeah! Also, if you like comics with robots: do you know "We the Robots"? It's concluded (and I just found out the site is down), but it was a favorite of mine, like, a decade ago. Good if you like humor about the minor indignities of life as a modern middle-class office worker. You can still find a bunch of them on the artist's site: https://www.chrisharding.net/works/wtr