From a man who has both, I reckon that's a good endorsement for either one, but the clincher may be
Also, as Friar says, you can firtle with the config, modes etc because it is versatile and as like His Reverence, I am moving things around every so often and trying new stuff like macros. I went from an X45 with a juddering/sticky base plate so appreciate the smoothness of the 52.
I think the clincher though will be the cash difference....