Again, I think we're all talking at cross purposes:
1) Each medium has its own inherent DR limitations. This isn't really much of an issue unless you're really seeking out the limits of SQ. Most of the easily available info on the internet suggests that CDs have a wider DR than vinyl and this was a huge issue for classical music fans and one of the reasons they adopted the CD quickly and abandoned vinyl. My uncle was an audiophile and classical music aficionado. I remember a full wall in his French Quarter home nothing but vinyl when I was a kid. McIntosh components and HUGE Klipsch speakers too.
When I visited him a number of years later all of the vinyl was gone, completely replaced with CDs and there was the CD player, probably the first I ever saw.
I think sever DR compression is found more on CDs than other media simply because of timing. The loudness wars began when CDs were still the primary music media and the renaissance of vinyl was still early or even a ways off.
That anecdote aside, I have no idea which medium has the better DR and don't really care, because:
2) The bigger issue is intentional and extreme DR compression. It crosses all media and if you want to avoid it you have to do the research. There are no guarantees. And sadly, with many if not most new artists it is simply unavoidable whether CD, digital file or vinyl.
