vaderios said:

…Talking about scales with savmagoett about Death Stars, he stated that the DS 2 is the same as the first.…

-Angel

Actually I'm not sure about that yet:

To be more precise it's the trenches who seems to be the same size (according to the trench mattes), but depending of the trench/DSdiameter ratio of each DeathStar they might not be the same diameter!

As far as my analysis goes, DS2 seem to be 160km and DS1 maybe 120km.
But I still have to confirm this…

I need a good hd picture of the two entire DeathStars to compare to the trenches and thus determine the global size of each DS.