XLR or RCA cables?

If you are connecting truly balanced components then XLR is preferred....if not balanced then buy all RCA you can and listen for your liking.  Balanced cables sound very much alike.

One thing no one argues about- XLRs stay connected better than
RCAs. 

Seriously If both products are truly balanced (as opposed to fake balance) then you will get a higher SQ.

I would love to tell you it’s all BS.

In my experience has been XLR cables make a difference in comparison to RCA cables - signal is higher and quieter.

I've also tried different XLR cables - Better Cables, Mogami and Kimber Kable KCTG XLR cables.

I heard a difference between XLRs just as I did with speaker cables.

It may be dependent on the gear. On some components there may be zero difference. On other equipment the difference can appear to be significant.

My Luxman L-590AXII sounds noticeably better with XLR. I don’t have the luxury to compare different XLR cables as I’ve already blown the budget with the purchase of the first set of XLRs in my system. It is likely that a superior XLR may sound even better than the one which I currently own.

XLR is quieter  especially on long runs with better resolution.