Yep, I have to agree that the user causes a lot of the instability. Both from people that dont know what they are doing, and from people who
think they know what they are doing. However, I think the poll should have been more along the lines of which company makes more stable chipsets for a given platform. VIA has way more stability issues with their current AMD chipsets than SiS or ALi does, and (Im not sure because I dont use non-intel chipsets for intel based systems) I think they also have a few of the same problems with their Intel based chipsets. So, I dont think the issue is wether you are going to have a stable system based on wether you chose an AMD or Intel processor, but moreso wether you are going to have a stable system based on what chipset you choose.
I have had more success with Intel simply because I only use Intel chipsets when I build Intel-based systems for people. But my home machine has an Athlon XP 1700+ @ 1.6Ghz on an Epox 8KHA+ KT266A board (which is IMO the best implementation of the KT266A on any motherboard, with the Abit coming in at a close second). Even though I have had more success with Intel, you will only take away my Athlon XP rig after you pry the case from my cold dead hands

.