Well they trade blows generally, so I'd probably consider the AMD over the Intel, just because you can OC the AMD, if needed. The Intel CPU won't OC, but does quite well on it's own. This kind of situation is going to be all up to you on which one to get.
It depends on what you're using it for. Gaming the first one is better, most other task, the second one is better.
haha sorry I'm going to be gaming mainly and maybe some school work such as office word but mainly gaming I think I'm going to get the intel i3 oh and what about the mother boards and I'm not over clocking anything