Fantasy - Any David Eddings books
Well... I guess Belgariad/Malloreon (along with the Belgarath) wasn't too bad (despite being somewhat clichéd and naivistic journey-of-a-neofyte-hero-and-his-merry-men), and neither was Elenium. Hell, I actually appreciated the Elenium more than Belgariad/Malloreon for the sole reason that when the hero kicks the bad guys' asses, it's because he's a badass warhero master knight and not some teenager with awakening hidden powers that amaze everyone... Sparhawk was IMHO a better champion character than Belgarion. But as a whole I liked the Belgariad a bit more. Don't ask why, perhaps it was because it was the first fantasy series I got into reading, about 9-10 years ago or so.
But Tamuli trilogy was sadly plagued with superman syndrome and plot devices, increasingly towards the ending, Polgara was kinda boring and felt like a rip-off re-telling of what we pretty much already knew, Riva's Chronicles even more so, I'm not going to even mention Regina's Song apart from it's name

and Althalus was pretty much lame all the way through as soon as the bronze age ended, and the characters were just cheesy... I haven't gotten the Dreamer (elder gods'n soforth) stuff into my hands yet, but I'm not holding my breath on them.
Obviously, Terry Pratchett's Diskworld books are entertaining and they get funnier the more you read other, more conventional fantasy/sci-fi stuff, they are crammed with references to all kinds of clichés you can think of. Also, other books by Pratchett are worth reading IMHO.
I personally also like Jordan's Wheel of Time, despite the 3-4 rather tedious books in the middle of the series, I just hope he wraps it ups before dying on it... Some don't like the so-called over-descriptive way they are written, but I don't have trouble with it mainly because my reading speed is faster than average.

Other fantasy authors I would recommend with some reservations include (but are not excluded to:
-Robin Hobb (Assassins Inc.)
-Anne McCaffrey (Pern)
-Weis&Hickman (Dragonlance is worth reading, but I personally liked the Death Gate Cycle way more for some reason - apart from the final books in the series)
-Salvatore (Early Drizzt books and Icewind Dale are cool, later ones... not so much. Also, the
The Woods Out Back was somewhat readable, but the later books in that series weren't that convincing)
On the Sci-Fi side...
-Vernor Vinge's
A Fire Upon the Deep and it's "prequel"
A Deepness in the Sky were rather enjoyable reading... Especially because there were some not-so-conventional forms of intelligent life. I get bored with differently coloured humanoids all over the place.
-I'd recommend Hal Clement's books (If the rest are anything like
Mission of Gravity, they are good stuff as well. I've only read that one due to lack of both translations and English versions in nearby libraries...) but if you've read most scifi worth mentioning, I'd guess you're familiar with them.
-Simmons' Hyperion universe left a distinct "WTF" impression on me. I mean, what the hell was it all
about? Apart from church schemes all around the place, weird religious themes, time traveling and wooden
gifts and toys space ships? Some of the confusion might be attributed to Finnish translation, but still...

And yea, Endumion was a Prick with capital P, Aenea was a poor man's messiah and there wasn't much to the books about them. Except more weird religious themes and church scheming.

EDIT: The Shrike was a fundamentally Cool Concept, though. But IMHO it wasn't enough.
Can't really think of much more right now.
