Not sure I've ever had a faulty CPU to date. hell i've accidentally bent a crapload of pin's on amd cpu's, bent them back in place and still work great. But realistically cpu's are fairly easy to test, out of the factory they tend to work or not work and they tend to catch the majority of dead cpu's before they leave.
While you can far more easily get a dead mobo, memory, gpu, hdd, psu, etc, etc, etc dead out of the box its incredibly rare for cpu's, almost never happens basically. I worked at a rival to overclockers a few years back, had hundreds of items back, never once, not a single cpu. I've never had a DOA or a faulty CPU, on this forum, till this thread the number of DOA cpu's numbers in the "I can't ever remember a thread in 5 years" area. I'd largely put it down the quality of production of Intel and AMD frankly.
If you had a problem with every amd setup, personally I'd put the blame more towards the user, trying same overclock idea's on Intel as AMD and that kind of thing.
At the moment I would say pinless design probably leaves Intel with a smaller number of people who manage to poopoo a chip before it even gets a chance to run but thats a slightly bigger chance on the AMD side these days, but I've yet to really damage a pin on any cpu.
As for stability of "intel" or "AMD", to be quite honest the chips work, or don't thats about it, the reliability of what people call intel or amd, is far more down to the other components than the companies themselves. its normally power circuitry and overheating rather than dead chipsets aswell so even Intel and AMD chipsets are very rarely to blame and the specific makers quality control at fault.
Compared to 10 years and 5 years ago, I'd personally say Intel chipsets are FAR LESS reliable than they use to be. Frankly Intel boards dying, 5 years ago, was incredibly rare, canterwood/springdale(think it was) the boards were just solid as a rock. These days, I've had a p35, a x38, a p45, a 975 and a 965 all fail on me and a couple those chipsets with a couple of boards.
I think mobo's in general have gotten less reliable but Intel branded ones, probably the competition and ridiculous number of variations have lead to a massive drop in QA. Each company used to make 3-4 boards, now Gigabyte make about 458 per chipset and reliability due to that, IMHO, is massively down.
