Admittedly, I've never seen the SS 1:2 nor the Imaginarium 1:2 in person (hopefully Brent will post photos of them together for comparison sake), but although I really love the paint work in the IA half scales, one thing I actually *do* like about the SS Iron Man Legendary scales (at least in photos), is the museum pose and very simplistic, no-frills base. But that's obviously person preference.
SS Legendary scales mark3 is look more like the props legacy effect using to make the mark3 suit in the movie. I think the colour is spot on!