I personally prefer limited story interactions. Part of what made the original WC so great was that plot details were left by-and-large to player imagination.
It depends... personally, a good storyline makes all the difference for me.
I liked Wing Commander 1, especially the branching missions,
but Wing Commander 2 with it's much expanded story was what really sold me on the series.
Wing Commander 3, despite the life-actors... was still good, but storywise it struck me as quite a bit worse than WC2 actually.
WC3 had a lot of similar themes that WC2 already did, just WC2 really had done them better already, like the traitor theme or the romance.
WC4 on the other hand completely made up for any gripes i might have had with the series. It was just all around awesome, despite an absence of Kilrathi.
WC5... seriously... i don't really even consider it a continuation of what Wing Commander was. It was pretty much a different game that happened to have space combat too and pretended to still exist in the same "storyuniverse"... and with Secret Ops that basically cut the story presentation to a minimum it just fell apart - for me anyways.
However... we also gotta keep things in perspective and i do appreciate that someone would make a campaign to allow us to have a peek at some of the shiny things and the gameplay that will be in WCSaga eventually
Of course the Prologue with all the radio chatter and banter was 10 times more awesome, but that doesn't mean we gotta diss this campaign,... just gotta see it in perspective for what it is - and then it actually can be quite fun