Amber, I like. Most of the rest.... comic fantasy, now, I like that. Not Piers Anthony, he's lousy, but Terry Pratchett is a genius. Well, he's British, what do you expect.
Tad Williams is a good fantasist though my favorite of his works, the Otherland series, is science fiction. But SF with fantasy overtones and borrowings.
I liked Williams' "Fritti Tailchaser."... but then I was a kid... who liked cats.