I can't really tell but I always use AMD but got bitten by a AMD based eMachines D443
It has a dualcore AMD E450 with a AMD Radeon HD6320 and that one will NOT boot Linux.
Well, I couldn't try them all ofcourse but let's say my usual's, including PCLinuxOS.
Strange enough it IS running Linux everyday as we found a weird workaround: Install Windows, boot Windows and restart .... It boots into Linux with no problems and runs it fine from there.
Trying to boot Linux direct = HANG and only a hard shutdown gets us out.
Hope (and expect to be honest) these kind of trouble will not cross your path.
We got a eMachines D630, also AMD based and it runs already 3 years without a glitch and of course PCLinuxOS.