In The Millions (I'm partial to number 2 on the list):
[W]e’ve conducted a poll of our regular contributors and 48 of our favorite writers, editors, and critics (listed below), asking a single question: “What are the best books of fiction of the millennium, so far?” The results were robust, diverse, and surprising.
…The List
#20: Gilead by Marilynne Robinson
#19: American Genius, A Comedy by Lynne Tillman
#18: Stranger Things Happen by Kelly Link
#17: The Fortress of Solitude by Jonathan Lethem
#16: Middlesex by Jeffrey Eugenides
#15: Varieties of Disturbance by Lydia Davis
#14: Atonement by Ian McEwan
#13: Mortals by Norman Rush
#12: Twilight of the Superheroes by Deborah Eisenberg
#11: The Brief, Wondrous Life of Oscar Wao by Junot Díaz
#10: Never Let Me Go by Kazuo Ishiguro