I agree with others: I'd like to see an entirely new game developed around the IP, but Armada is much closer than X-wing. Star Trek battles should have the feel of naval engagements, rather than the WWII dogfights X-wing more-or-less mimics.
Honestly, I don't think the ST setting is good enough to warrant interest, so regardless of rules quality it's not a game I would ever buy into.
Then, quite seriously, why did you bother to reply?
Well, you made the catastrophic mistake of using question marks in your OP.
He wasn't the OP, I was.
However, the question wasn't "Would you buy a Star Trek game?", it was "Do you think Star Trek would work better as X-Wing style, or Armada style?".
Still I welcome your opinion, even if it doesn't align with mine. And I do think Star Trek woudl sell well if done well under FFG. Especially if it was made to somehow be compatible with Armada - even loosely. Gosh that would be just awesome.
A new system would be rough to do, because Armada does so much right. I suppose a New system would need to include a few extra things. Like Boarding Parties, or Away Teams. I mean that is very Star Trek-ish, and could take the place of Squadrons in Armada. But would that Clutter up the game too much? Would it work better as a side-game? An optional "Game within a game"? Like suppose tournaments are strictly Fleet vs Fleet - but in each expansion there are a card or two for away teams, and those can be used in a side game - and maybe some missions involve a planet, where you'll have away teams on the planet and a ship or two in orbit. I feel like that could work, I just can't explain exactly how it should be done.
Also I think it would need a way to have more than 2 players. Heck, allow it to support a bunch of players. Make the ship bases small enough so you don't need a 6' x 3' board for a battle.