I had the not waking up from sleep problem, it was pretty annoying. I worked around it by disabling my monitor and PC from going to sleep. With 12.6's (or 12.7's? I forget which I have now and am not on that computer) I haven't run into that problem any more. That was my only problem, I don't have it any more. But, I'll admit that I don't game or buy just released games nearly as much as I once did.
My Llano laptop has one odd issue, if I click back somewhere in text I've typed, the cursor doesn't move. I know it is where I clicked, and as soon as I start typing the cursor appears. Not a big deal, really.
I can honestly say, with both my 4870 and 5870 I had absolutely zero issues, not even little problems, unless I tried to OC too far. Once I dialed back my OC's to stable levels, I simply had nothing but a perfect experience. Even when I added a second 5870 I did not have any problems. Sometimes scaling left a bit to be desired (but with a Phenom II the blame could also lie there), but as far as stability, no issues.
I don't think the OP is trolling because he's bashing AMD. There have been plenty of legit driver complaint threads about AMD cards (and Nvidia cards) on this forum and others. But the entire OP reads like a troll post.