Hi and welcome.
This is a Gigabyte forum and so I don't really know what answer you expect from here! Obviously I don't know the pros and cons of the Asus motherboard in question but the Gigabyte one is very good. One of the main points i have always liked about Gigabyte over Asus or indeed many other manufacturers is that Gigabyte are the only one to have an office and service centre in the UK so if there are any problems you don't have to pay to send your motherboard overseas for help.
""This is a Gigabyte forum and so I don't really know what answer you expect from here!""
I thought that comment was a bit silly. Where else would I go? But maybe the correct answer stuck in the throat of a staunch Gigabyte supporter.
Regardless.. I have found the answer from further exploration.
The Asus is quite a bit more superior than the Gigabyte.
Get both spec sheets as ASUS Tech advised and do a simple comparison check. "That's where the answer is"
And it was. I will be using the ASUS board.
...ps.... ASUS are in the UK as well.
I appreciate your help.