My favorite author is Kurt Vonnegut and my favorite book is Breakfast of Champions, which is of course by him.
Favorite book series, though, is the Oz series by L. Frank Baum (haven't read any of the stuff that was written after his death), the one I like the best of that series being The Marvelous Land of Oz (the second book). He wrote 14 books in the series, which is fun. I'm toying with releasing some novels on here re-telling the stories, just with some changes that can alter important aspects (like replacing the maybe-about-9-years-old Dorothy with an adult, as one aspect). I've already started on some of that stuff (of course, I have my own completely original fantasy books I want to actually finish, but sometimes you put your hand into too many projects).
For comics, I like Rachel Pollack's run on Doom Patrol that helped kick off the Vertigo imprint of DC. While overall I'm a Marvel fan, I still acknowledge DC has made some fun stuff. Webcomic-wise, I think my favorite currently (still ongoing and not on hiatus, I should mention) is Magellan. On Tapas, I think I would say it would be the Blue Valkyrie.