I can see a pretty clear difference between Galaxy and SM3DW. The levels in galaxy are full, huge, and have more unique look to them. I'm sorry, but SM3DW may look clean, but it looks "meh"
It looks like some people cant, considering the response after I posted the comparison pics (ofcource, I did use dolphin pics for Galaxy). From a technical point of view, you can perhaps say that SM3DW has higher resolution textures, more advanced shaders, more advanced lighting and shadows, and a higher number of vectors composing its environments and characters. Atleast you can agree to that?