I think Blood Meridian is his best book by far. The first time I read it, when I got to the end, I didn't even get up from my chair, just went right back to the beginning and started reading it again.

I also like the border trilogy: All the Pretty Horses, The Crossing, and Cities of the Plain. Sort of surprisingly, never actually read No Country for Old Men although I've seen the movie three or four times.

I think The Road is overrated.