I just fired up Sampletank and Kontakt and did a comparison.
I tried the ST 2.5 Taurus pedals (I do not have Sample Moog) and its a pretty decent patch which you can vary considerably with the filter and envelope controls.
Then the Hollow Sun NKIs, there are 4, straight, detunes, 5ths and Octaves. They are earth-shattering along side the Sampletank patches.
That said the ST ones may be easier to tame in a mix and are not limited to the range of the original like the Hollow sun instruments.
Prog Pack is great. It looks like you still get the original "Newtron Bomb" with it's very raw Mellotron sounds. Newtron Bomb III is much more civilized with layering and effects but I still like the original. The String synths and CP70 are excellent too. The Hammond and RMI sounds are thrown in as extras, they are basic but usable.