Who are the "Best" Living American Writers?

The publication of Jonathan Franzen's new book, "Freedom" (about which I posted on 11/8/10, 11/11/10, and 11/13/10) brought about a flurry of articles and reviews speculating on whether Franzen is the new best American writer, now that Bellow, Updike, and others have died. Those who read my posts know I do not agree with this assessment. But the ensuing discussion did make me wonder who could be considered the "best" now. I don't really believe there can be one, or even several, "best" writers, because different great writers pursue different themes, employ different styles, and have different strengths. Also, who is the "best" of a generation may not become clear until all the writers of that generation have died and enough time has gone by to get a clearer perspective. But for fun, I looked around the internet to see which names are most often listed in the category of "best"; I found about 30 names that are consistently cited. Most often mentioned are Philip Roth, Don DeLillo, Toni Morrison, John Irving, Joyce Carol Oates, Marilynne Robinson, and Thomas Pynchon. Others frequently mentioned include Tom Wolfe, John Irving, Louise Erdrich, Lorrie Moore, Jane Smiley, Colson Whitehead, Jonathan Lethem, T.C. Boyle, Jonathan Safran Foer, Michael Chabon, Anne Tyler, Richard Russo, Jeffrey Eugenides, Jennifer Egan, Barbara Kingsolver, Nicole Krauss, and Jhumpa Lahiri. Readers, what do you think?