First, I have to confess that my determination to pass on the ROC figures melted once I saw the images of them. Fantastic figures for the most part. Taking the figures in a different direction seems to have caused the sculptors/designers to bring out their best work. I have no will power, it seems.
It's refreshing to see versions of Duke (even if it's not the comic/cartoon continuity) that aren't endless variations on the tan shirt, green trousers look. So far, the actual Storm Shadow costume, with its white leather and "is that supposed to be suit?" appearance, hasn't won me with the live action images. However, the figures look sharp and don't seem as silly as the live action images do. Even the Snake-Eyes figures look different enough from the previous 50 or so versions to justify purchase.
Terra Viper, Viper Commando, Breaker (Abel Shaz- not Alvin Kibbey), Elite Viper, and others are new characters. Long overdue. If there's one thing that the 25A line is guilty of, it's not producing new characters. Whether they fit into previous continuities or not, these are characters we haven't seen before.
Most of the ROC weapons don't have trigger guards. Technically, this makes the guns look less realistic. However, on the 1:18th scale, I prefer it because it allows for the figures to hold the weapons using the full handle/grip. A spattering of 25A figures and NS figures have separated trigger fingers, allowing them to hold weapons with trigger guards more naturally. Almost no ARAH figures do (GI Joe is the only one that comes to mind). It's a small detail, but it really warms me to the line.