I love Jefferey Eugenicides, or at least all two of his novels that's he's written. He's so articulate, beautifully written and also quite humerous. I can't get over how well he seems to get (albeit exaggerated) into the female mind, as well.
Also, Alice Sebold is a wonderful writer. The Lovely Bones is beautiful, and from what I've read so far of The Almost Moon it's on the same track. I think she has to be the queen of opening lines as well.
For light relief Marian Keyes and Ben Elton (though more his earlier stuff like Inconceivable and Dead Famous- I wasn't a fan of Chart Throb and haven't read his latest)
Favourite playwright has to be Tennessee Williams, The Glass Menagerie in particular. Quite partial to some Arthur Miller as well, but I much prefer Williams' style. Can I include Jason Robert Brown once again (he does musicals, ok, they tell a story
). I have never read/heard lyrics that can affect pretty much everyone who reads them so much.
I may have overused superlatives in this post.
Will think of more later.