1997 metagame summary:
There are no
cards or magic bullets of any kind. Nearly all competitive decks use 6 space or 6 planet missions. Space is slighly more popular to avoid The Sheliak, and players are allowed to attempt space missions from their outpost (thus space-mission decks prefer to seed two outposts).
Most dilemma strategies involve the same few space/planet dilemmas that are effective against any opponent:
Shaka, When the Walls Fell
Barclay's Protomorphosis Disease
(with red-shirting, it was a good killer and unlikely to provide bonus points)
(this was ruled, or at least played, as a wall requiring MEDICAL and SECURITY even without an Empathy trigger)
There was also some Yuta, Parallel Romance, Armus, Radioactive Garbage Scow, Alien Parasites, Coalescent Organism, Borg Ship, Q, and a few I'm not remembering.
The Traveler and Kivas Fajo were used extensively-- Red Alert! less so, because you just didn't need it as much (and it wasn't a good idea to rely on it).
* Space mission speed-solvers with red-shirting (The Romulans were most popular, thanks to the availability of Dr. Telek R'Mor and high-point missions; Federation was next most popular)
* Planet mission speed-solvers with red-shirting (often coupled with a Horga'hn or Betazoid Gift Box)
* Q Bypass (because of the limited dilemmas, this was not an overwhelingly powerful strategy compared to the others, but one such took 3rd place at '97 Worlds)
* Planet mission supercrew (typically with Red Alert and Genetronic Replicators)
* Borg Ship hunter (with Kurlan Naiskos)
Bowling's 1997 Championship Deck
EDIT: hidden, I see that Rachmaninoff beat me to it. I was pretty close, though.