I got both, PS4 Pro is way louder, comparing the same game side x side on both consoles on an isf calibrated 65 inch 4k TV the xbox is better visually on most titles but it's far from night and day.
But..... speaking personaly other than forza the xbox has nothing for me, I'd take the PS4 Pro everyday of the week and twice on Sunday, their exclusives are way better in my opinion, GOW, Spiderman, HZD, Days Gone etc. I can't get away with the xbox ecosystem at all. Will be up for sale soon, I just don't use my 1X enough, whereas the Pro is used daily.