I read mostly historical fiction and fantasy.

My favourite authors include:
L.E. Modesitt, Jr., Chaz Brenchley, Anne Bishop, Mercedes Lackey, Katherine Kurtz, Anne McCaffrey, Marion Zimmer Bradley, Sara Douglass, Terry Goodkind, George R.R. Martin, Jack Whyte, Bernard Cornwell, JRR Tolkien, Guy Gavrial Kay (he's Canadian!

), Pauline Gedge, David Eddings The Belgariad (as someone above said, forget everything that came after), Robert Jordan (except I'm going to have to start re-reading all the books, I'm totally lost), David Gemmell, Robin Hobb, and the list goes on and on...
My fiance introduced me recently to Asimov, and I quite enjoyed his books as well.
I love reading - I read on the bus on the way to and from work, and I read for at least half an hour every night before going to bed - it's how I unwind and get ready to sleep.