I was actually going for something sort of inbetween both. Basically, it was supposed to look bigger from some perspectives, but smaller from others, like the front view. Sort of what the baby of the sov and the galaxy would look like.
In general, this ship is a graduation of what was learned from both ships, taking it to a military extreme. It was actually born from a single scene, where the Enterprise is getting hammered by a heavy borg scout (large sphere) and a Marine Corps vessel comes in to assist and hand the sphere its walking papers. In the written scene, it indicates the class and that it is a marine ship, and one of the deck crew makes a remark about how big it is.
And thats it. Not much to make a ship for. So, I pictured this ship as you see here. Bigger than the Sov, but still having less volume then the Galaxy (after all, its a military ship, no families on board). The ship has a contingent of marines on board, and plenty of firepower, a capital ship in it's purest form.
The fun part about my job is I get to take the story I partially wrote, look at a need (this ship) and invent it....not just how it looks, but its background, history, etc.
At any rate, it sits right where I intended it to. The nacelles were supposed to be slightly shorter than the Sov, but wider, and sitting at about the same gerth. The saucer was supposed to be a slight oval shape, something inbetween the sov and galaxy. Overall the ship is larger than the basic sov dimensions, but still takes up less space than a galaxy, though longer than both.