See my previous post. All the comic accuracy in the world is secondary, in a statue, when it comes to design and other aspects (sculpt and paint app, mostly). The design choice of the visible pegs is a huge flaw to me.
This, and the fact pointed out above. XM Magneto tells a whole story about the character. Almost every other Magneto statue on the market right now is just "he's controlling metals", and well, yeah, fine... but the character is so much more than that.
There is no visible pegs in the Madx, it has a see through for the skull and the leg is shielded by the skeleton.
The XM studios is the better statue no doubt, but it's not accurate to anything, it's a made up statue from no reference. So comparing an almost perfectly accurate Magneto, that looks like Jim Lee's art work and is based from a storyline where Magneto removes Wolverines Skeleton, to a statue that is just a Magneto statue is not really a good comparison.
Also your first statement makes no sense at all - "All the comic accuracy in the world is secondary, in a statue, when it comes to design and other aspects (sculpt and paint app, mostly)". This means basically that if you put Magneto in the wrong colours, with the wrong suite, with a head sculpt that doesn't represent him, that's ok? Wierd if you ask me.
The draw of this statue is obviously the superb base, paint work, display options and presence, along with the freakishly weird obsession with Marvel characters sitting on thrones (which is now being done to death).
I really love XM's stuff, Magneto is the best one , but honestly, even that head isn't that great in terms of likeness to anything. If anything it looks like a hybrid of fassebender. It works for this statue brilliantly though.
I think most people these days though don't care, they probably have statue's of characters they know nothing about and just collect stuff because it looks cool (like Lobo). There's nothing wrong with that. My opinion though is that if you want the best comic based Magneto, it's the MadX statue by a fair margin. Especially if your a fan of the 90's cartoons.