I'll stick the Kilrathi Saga, since I happen to like the re-sampled sounds and music (and I grew up with the original versions too, and still prefer the makeovers). But more importantly, the KS native Windows environment support which remedied the speed issues with DOS versions of the games and the compatibility with expanded mission packs without any fuss are paramount. Are those freeware Secret Missions and Special Operations really
only the Kilrathi Saga versions, the priciest second-hand out-of-print game in existence? Oh, the irony.
I've bought and played all three of these games, WC 1/2/3, over the years in their original form (some twice), so Origin got their money from me. I'd like to give GOG some, as I've "re-bought" many a game here I've already owned or still own from my collection over the years, though at the moment my motivation for this "inferior" version of WC 1/2 is lukewarm.
I know the Native Win support isn't flawless, but I prefer it to using DOSBox and putting up with speed issues. The support articles and third-party downloads over at Wing Commander CIC
were of great help in this regard, at least the last time I installed it. I especially prefer KS if the GOG version of Wing Commander is determinedly not compatible with the expansion mission packs, which according to some people here is the case.
If Privateer 2: The Darkening, Alice, Strike Commander, or the Ultima Collection are up on the coming EA block I'll gladly plunk down whatever for 'em. I would have for a $9.99 Kilrathi Saga that hit the digital shelves here gladly, and everyone could have been happy. But alas, no. I think GOG users are emphatic about Kilrathi Saga being the preferred experience because they're more knowledgeable and savvy about the optimal versions of these old games than more casual gamers.