I'll give the other opinion. The advantages of XLR don't come into play in your situation and either will be fine. You don't have a long run.
I am currently going back and forth between RCA and XLR on my DAC to integrated tube amp. XLR seems a little bright the way it is implemented in this amp but it may be more cables than anything else.
As you can see, there are lots of opinions on cables.
Jerry