This really is a great question. I'm currently ignoring some deadlines to read a bunch of John Le Carre (who I strongly recommend). I love literary fiction, but it's always nice when things, you know, actually happen. So you might try:
Julie Orringer - The Invisible Bridge. OK, yeah, it's a love story set in World War II-era Europe, but Orringer is an amazing writer, and there's not even a hint of cliche in the book.
Dan Chaon - Await Your Reply. This is an insanely great thriller about identity theft written by one of America's greatest short story writers. It is brilliant.
James Hynes - Kings of Infinite Space. Cat ghosts! Underground zombies! Bureaucrats! I probably shouldn't have put "Bureaucrats!" last, but still. It's basically "Office Space" meets...I don't know, some movie about cat ghosts and underground zombies. And it's hilarious.
Frans Bengtsson - The Long Ships. An epic 19th-century novel about Vikings -- the NYRB edition has an introduction by Michael Chabon. If that's not enough to sell you, than I JUST DON'T EVEN KNOW.
David Mitchell - The Thousand Autums of Jacob de Zoet. Even if you're not a fan of Mitchell, this one's great -- a love story and a historical epic, and unexpectedly funny.
And I'll echo Alison on Oh Pure and Radiant Heart; it's a winner.