'The Road' was the first of McCarthy's books that I read, and while I enjoyed it, I didn't think it was the best of post-apocalyptic fiction I've read, or even amongst the top ten. (Of contemporary work, I really like 'Brief History of the Dead', 'The Pest House', and 'Oryx & Crake'. The all-time best, in my opinion, is 'Cat's Cradle')
I didn't think it was a bad book; it held my interest and got me to read other McCarthy books. I just finished 'Blood Meridian', and I really enjoyed it. I haven't decided if I like it better then 'All the Pretty Horses', but it's good none-the-less.
As has been previously stated, Fallout 1 & 2 preceded 'The Road', and McCarthy has probably played either one of them about as much as Clancy has played Rainbow 6 on his XBox