I think it comes down to what your centerfire preferences are.
My likes tend to lean towards the 1911 pattern pistol sooooooo I went with the GSG. I'm now looking at the Colt UMAREX Model 2245708 because it was not available two years ago.
Don't get me wrong, the Ruger Mark pistols are great guns, more than likely better in the accuracy department than any 1911-22. BUT
.....I don't regularly shoot a German Luger P08. I shoot a myriad of 1911s. Ergo; I prefer to shoot a 1911-22lr.