fantasy authors that rock :
Robert Jordan, Wheel of Time makes Lord of the Rings look superficial and pendantic.
Tad Williams, War of the Flowers is a fantastic read.
David WineGrove, Chung Kuo series is a very interesting fantasy/sci fi endeavor.
Raymond E Fiest - not the best writer but the magician series is a decent read.
Trashy Sci Fi Authors That Kick A88
John Ringo And David Weber - March Upcountry series. Incredible action.
Heinlien - The master to whom we all must bow down.
Herbert - Dune, and many other lesser knowns.
Greg Bear - EON, mind mending.
Niven, Pournelle, foot fall and lucifer's hammer, end of the world sci fi
Turtledove -fabulous alternate history
Walter John Williams - The Rift, would make a good movie.
Robert Silverberg - the majipoor chronicles. entertaining and engrossing
ahh there are so many more but I'm blanking.....