I'm not a big fan of Chattaway's action cues; I prefer his more emotional, sensitive material. Although I did like his action work in VGR: "Scorpion," since he actually got away with composing a leitmotif for Species 8472.
Yup, Scorpion is my favorite for Voyager, I so wished they released it. Well, given all the soundtracks to come out lately maybe they will, and a lot of good Enterprise tracks too.
DS9 did not stand out as much musicaly for me but at had its moments at times.