I read a large variety of books. I'd say my favorites by Genre are:
Anne MacCaffery: Fantasy (but Mercedes Lackey is a close 2nd)
Dean Koontz: Horror (sometimes he can be repetitive, but overall, I like his stories)
Tom Clancy: Military Fiction (I don't like his spin off series though)
Nora Roberts: Mindless Romances (but I'll read Jayne Ann Krentz, Janet Evanovich, and others!)
Jerry Jenkins: General Fiction (and the Left Behind Series). This author is an excellent general fiction author. The books not in the LB series aren't overtly religious (but recognize that I'm a Christian, so you might not feel the same). However, they are books that show you can grasp someone's attention without a lot of sex, violence or language. The Youngest American Hero is wonderful!