Edding's earlier books - The Belgariad and Mallorean (and offshoot books), and The Elenium and Tamuli are actually really good, Belgariad being the best.
Ongoing jokes between characters over multiple books (Can anyone give me a 'why me?'), some humour and little things for observative readers to notice, all sorts of little things you often don't find in other author's works. I introduced a couple of my book reading friends to these earlier series, and they all converted, and most now own some of the books in some of the series
The Elder Gods series is pretty cack though, and Redemption of Althalus is a mixed bag, you either hate it, or enjoy it
I quite enjoy it mind, not an epic, not hugely in depth, but there's a lot worse out there.
To be fair though, Redemption of Althalus isnt a shake on the belgariad - it's a similar style of story, just with a lot of the edges and depth cut away to make it fit in one book, but it's enjoyable if you treat it as such, rather than as an epic.
I heard other members of his family (wife and son) took a heavier involvement in his latest books, which could explain why they've been a lot weaker.
Earlier Salvatore books before they lost the focus on Drizzt and his comrades are also rather good, although I felt they got weaker when they moved away from Drizzt, but the Drizzt focused ones tend to be really rather good.
Wheel of Time by Jordan I'd say is a definate mixed bag, you might like them, but I got a little fed up of the repetetive over detailing of the same things again and again, although I found the premise interesting. There's only so much you can hear about the ladies uncrumpling clothes etc etc before you start to glaze over unless you have exceptional patience. From what I've heard of the later books in the series, he could perhaps really have done with condensing the series down to about 2/3 of the number of books, and doing away with a layer of the over detailing, to improve the pacing. But they're a niche market I'd assume, and I didnt quite fit the niche.
Tolkien Im actually not that fond of. I respect his role in the development of modern fantasy, however I found Lord of the Rings a trailing abomination to read to be honest, the Hobbit was better, but I think perhaps he's revered a little TOO highly for his works, because of his influence on modern fantasy, rather than the credit of the works themselves. Rose tinted reading glasses anyone?
Gemmel and Feist I read a little of, unfortunately I was forced to read later books in the respective series' so they didnt seem too great, as I was missing a lot of the understanding of the backstory and the characters. At some point I need to go back and look up thier first books, and give them a fresh shot from those, rather than jumping straight in part way through the continuity.
I've also read a lot of the assorted D&D books out there, I doubt I've touched the surface to be honest, and the Drizzt series are the foremost in my memory of those I've read. I really need to look some more of these up, as I enjoyed the Baldur's Gate games, and enjoy the Forgotten Realms setting, the Elminster series have been on my reading list, whenever I remember they exist, for as long as I can remember. One of these days I'll get round to reading them.
I still need to get round to reading the Dragonlance stories, having only read one of them that my family owned, many years back.
There's been plenty of other authors I've enjoyed as well, unfortunately as I borrow a lot of books from the libraries, I cant remember the authors too well, as I dont have any referance, and havent seen some of the books for years.