I'm currently in the process of doing a build and I know that I had a hard time finding a place that had a side by side comparison of the ASUS P8P67 Pro Vs. Deluxe, so I figured I would post what I was finally able to find.....
As you will see the two boards really are very, very similar at least in my opinion. I'm going to go with the Deluxe if I can find it, mainly just because that is what I had already decided on. I plan to do the build this weekend though and if I can't find the Deluxe then I won't have any problem going with the Pro version.
Hopefully this will help out if anybody is trying to compare.
Sorry if this is a dupe, I searched and couldn't really find any side by side comparisons like this.
It might be a good idea to post this question in the Motherboards & Memory Forum.
They might have some additional insight into the differences between the boards.
And I think they would love to see that chart. Very useful for a lot of what they do.