I enjoyed Stationary Bike the most, but part of that may be because I had been very interested in reading it. Rest Stop was also enjoyable because I like seeing authors, people you'd normally think are bookish and timid, kicking ass. Rounding out my favourites is The New York Times at Special Bargain Rates. After this, my tenth of his books, I'm still asking myself whether I actually like Stephen King; this wasn't the first of his books I'd tried (and failed) to read on the first go. I guess I must, though, because I keep buying them.
First story totally tripped me up, although I had a feeling going in that something had happened to those people waiting for the train. Spooky. I remembered Gingerbread Girl from the magazine article (and I will die a happy woman if I could remember the name of the magazine!), but it was like I'd never read it before. I LOVED The Stationary Bike, loved it, loved it, loved it. What a wonderful twist! I currently reading Things They Leave Behind (or somesuch title), will post what I think.