Captain Kruger wrote:For all three of the eras you mention, I believe the Romulan Star Empire was dominant.
The xenophobic Romulans, after 50 years of isolation, had built up a large fleet based almost entirely on the D'deridex-class warbird, a ship that one-on-one could beat anything the Klingons or Feds had. When you also consider their cloaking technology, I believe they would have been dominant in any war started during TNG. I don't believe the situation was much different during DS9, being only 5-10 years later. The Federation might have improved a bit by the start of the Dominion War with their high number of Galaxy-class ships. Had they mass produced more Defiants, there might have been a real difference. But I still give the Romulans the top spot.
You say the Romulan Warbird could beat "anything" the Klingons or Feds had.....but isn't the same true for the Klingons and Feds state of the art startships? A GCS could also beat anything the Romulans and the Klingons had.
Remember that we've never actually seen a warbird accomplish this.
You base your argument of speculation here, remember this is ST and useful technology isn't always used again after it's been destroyed. Besides the Scimitar was Reman in design and not Romulan.In the aftermath of the Dominion War, the Romulans will be even MORE dominant. They only fought for the second half of the war. It was also clearly stated near the end that Klingons had by far lost the most number of ships. As if that wasn't enough, imagine the Scimitar's new cloaking tech going into the existing warbirds…the Romulans are a terrifying force going into the 2380s. They might be able to dismantle the UFP and Klingon Empire at the same time.
AgreedOn the flip side, the one Romulan weakness is probably their infrastructure. They hold less territory than either of the other two, which means they put a good deal more of their GNP into their fleet of 1.2km-long warbirds. In a prolonged war, the Roms would have a tougher time replacing the ships they lost.