I know a lot of people who are in charge of ordering tech for medium sized businesses - most, if not all, of these folks tend to order Intel motherboards and CPUs. Their reasoning was stability - AMD has more raw power, but they've had less problems with the Intel solutions.
I have an AMD based system at home, and my workstation in the lab is Intel, and have had 0 problems with either.
I have an AMD based system at home, and my workstation in the lab is Intel, and have had 0 problems with either.