I too read a lot but not necessarily one particular author. Some of my favorites are Jane Austen, Diana Gabaldon, Dickens, David McCullough, and Ron Chernow, off the top of my head. Janet Evanovich's Stephanie Plum series until about 10 books in, then I got annoyed and bored.
For about 2 years I read nearly everything in my county's libraries about the American Revolution. I've always been interested in that period and probably one of the best biographies I have ever read was Chernow's about Washington. He did a fabulous job debunking a lot of myths, which were annoying poppycock, IMHO. The truth is really so much more interesting to me, ultimately. The whole time during that book and McCullough's 1776, I kept saying to myself, 'These Americans stand no change whatsoever of winning this war. What are they thinking?!' Heh.
Currently reading Bleak House and impatiently waiting for Gabaldon's book due in June. I have found that reading literature from the 19th century so fulfilling and time well spent. They are so frequently intensely evocative and rich in character, and I am often completely satisfied that I used my spare time intelligently.
eta: I tried reading Faulkner because he is a favorite of my wonderful aunt, but nearly sporked my eyes out and hanged myself. Oh, and anything Oprah recommends I stear clear; I have learned my lesson. Too depressing.