The Defiant is the single worst part of DS9. DS9 is awful, and a big part of it is the Defiant.
Here we've got a ship that's a brick. Seriously, that's basically what it is, a brick in space. You ask me to describe the Defiant to you, that's all I can come up with. It's a turd. It's a little turd brick and that's about all I can do. The thing looks godawful. What is one of the reasons that people like Star Trek? Well, because Star Trek has beautiful ships. There's an aesthetic appeal that drew me in when I was a boy growing up. The Enterprise is probably the most iconic spaceship in pop culture, god bless Matt Jefferies for his innovation and vision. You look at the Enterprise, and while it might seem a bit impractical, the design itself is unlike anything that we had traditionally thought of as a spaceship. It is not a rocket with fins. It is not a lazy ass giant triangle. It is a saucer connected to a cylinder with a neck and long graceful warp nacelles at the back. That's ingenuity. That is something that we don't see everyday and it looked great and endured through the decades. Starfleet ships have proudly carried on that Jefferies visual aesthetic until the Defiant.
The Defiant just looks terrible. It's got this retarded looking snout up front, with the deflector dish. Only it's not even a dish, it's this weird triangular blue thingy that we've never ever seen before. But they say it's a deflector dish, so whatever. Then you've got the inconsequential warp nacelles on the sides. Except they don't look like nacelles, they're stuck on and basically part of the hull. And uh... there's not much else. You've got the weaponry, but they aren't really displayed either. I've never really seen the phaser cannon ports.
So it looks ugly. Visually, it's a disaster. There's nothing redeeming about the design. But now let's discuss the actual ship.
The actual ship itself, as written, is a fucking joke. It is a joke that is not funny. It strikes me as something that a fanfiction writer on usenet would be embarrassed to show people. This ship is tiny, about the size of four or five runabouts, but apparently is the most powerful goddamn ship in the universe. This ship possesses phase cannons that seem to rip apart battleships in one or two volleys. This tiny ship is portrayed as being as powerful as 2 or 3 Galaxy class starships, apparently. This is a fucking retarded idea. This is idiocy. There is nothing as stupid as this in television history. This is a fanfiction ship. This is something that someone would write as being the hero ship in fanfiction. There is no goddamn way that I am gonna sit and watch a show that employs an ubership that is small, fast, and more powerful then much larger battleships. I don't watch anime. I don't like to watch complete garbage. This ship is an insult to Star Trek.
Why even bother making any regular ships at all? Why do anything but make these ultra powerful pocket battleships that have phase cannons that rip through shields and oh yea... it's got ablative armor, so even if you somehow knock the shields down, there's still not much you can do? This is just retarded. The ship is insanely overpowered and completely ridiculous. Whatever happened to the beautiful Trek ships of yore? Can't we just be happy with nice curved saucers and regular phasers? Do we need phase cannons that are tiny but severely overpowered? What is this? I know it's designed to defeat the Borg, but that's no excuse for something this monstrous, this over the top, and this ugly. Plus, the Borg's greatest advantage was their ability to adapt. So even if you have phase cannons and quantum torpedoes, the Borg will just adapt to them and you're still screwed.
The Defiant is everything wrong with DS9. It is a blight on Trekdom, and I am so glad that at least JJ Abrams's reboot will wipe that eyesore from existence.