I read a lot. I have authors I follow and I have favorite authors...for each genre. But to actually pick between the genres would be hard. I like science fiction, fantasy, paranormal romance, regency historical, and urban fantasy. But what I read depends on the mood and I can't say one is any better than another.
Anne McCaffrey in the science fiction arena still holds a piece of my heart. While I do love Pern quite a bit, my favorite series from her is the Crystal Singer trilogy. A great escape with music, gems, and world exploration.
Janny Wurts is my queen in epic fantasy. Great worldbuilding and in depth character exploration. Her Wars of Light and Shadow series spans hundreds of years and goes in depth in how politics and religion can change a world.
Anne Bishop's characters call to me. I live for the next Black Jewels book because I want to see what is happening in the lives of her characters.
These authors have been with me for years. I've had to replace books because I've read them so many times. Yes, I pick up new books and new authors. Ilona Andrews is an author I started reading about two years ago and recommend her for anyone looking for Urban Fantasy. But I still go back to my favorites. At least once a year I will read every book I have from these authors. That is what makes these authors favorites for me. No matter how many times I've read the story before, I still look forward to reading it again.