Robert Jordan was indeed amazing. While Wheel of Time was very fascinating (and vast), my favourite is actually his rendition of Conan the Destroyer. It's so classic, and still beautiful and touching with a hint of comedy.
Another favourite Fantasy writer of mine is Michael Moorcock. He's one of those inhumanly productive types, and the main author that got me into Dark Fantasy, which has been my favourite genre for years now. He uses lots of old English, which I love, and portrays his characters in a very credible, human way, psychologically speaking. His style isn't all that much High Fantasy either, which I enjoy; I prefer a bit of Low Fantasy. I really loved his collection of books on Dorian Hawkmoon (known simply as Hawkmoon), one of the Eternal Champions. Corum, Prince in the Scarlet Robe, is even darker and almost like reading an incredibly long nightmare a lot of the time.