Hi Toni,
I like Sherri Tepper and Ursula Le Guin, but haven't read Martin. My favorite SF author is C. J. Cherryh - almost all of them, though right now I'm especially fond of the Foreigner series. I also like fantasy - have recently discovered Elizabeth Bear and Catharine Asaro, and am working my way through them.
I have low tastes in humor (gosh! now you all know!) and have really enjoyed the vampire series by Mary Janice Davidson - the titles usually begin with "Dead and -" e.g. "Dead and Unwed". And in non-SF, since I like slapstick, at least in books, I've laughed myself silly over Janet Evanovich's Stephanie Plum series.