Marian Keyes - now I like her books too. I like that she deals with dark subject matter under the cover of humour. I don't particularly like that she's lumped in with the other chick-lit stuff which is generally airhead fluff material (especially the shopaholic shit), I think that underrates her books.
I remember lending Rachel's Holiday to a friend who was doing a counselling course - she gave it back to me after she'd read 1 chapter, saying it wasn't her thing - so I told her to go away and read more of it, until she was at least halfway through. She did, she loved it. One of her favourite books now.
Having said that, I didn't much like The Brightest Star in the Sky, and I was quite disappointed in The Woman Who Stole My Life - but all the Walsh girl books are great, and so is This Charming Man.
For me, the books I like have to be readable - I don't much care if they are considered good or bad writing, so long as I enjoy reading them.
Terry Pratchett - his first 4 discworld books can be a bit of a trial in terms of quality of writing, but by the 5th book, he's into his stride and they're great; up until the point where he was producing too many at a time, and the quality (IMO) fell off a little, but I think he thought so too and slowed it down again. Jingo is my least favourite of his Discworld books.
Jane Austen might be a great writer, but I was reading some of Sense and Sensibility on line the other day and GOD it was hard going! (Although I love P&P, much easier to digest.)
HP - the books hold me, I'm transported into the HP world while reading them - and that's what makes them "good" for me. Same with Terry Pratchett; but there's another writer, Tom Holt, who is also comedy fantasy fiction and his books always seem just a bit too "try-hard" - the easy comedy just doesn't work so well, IMO. Yet to others he'd be just as good as TP.
Well that was too much of an essay! What I'm trying to say is: if I enjoy reading a book I consider it good; if I find it hard work to get into, or too easy to put down, then I haven't enjoyed it that much and I don't consider it that good. Isn't that generally what we all do?