Spaceship design is a delicate matter as you have to consider several factors such as race semiotics, ergonomics, dreadfulness and above all LOGICAL DESIGN.
by far the most beautiful ships can be the Amarr empire ships, they make sense in a engineering perspective (some of em at least), they are true to the lore the race plays, and they look elegant, but come on having spikes (sansha) all over the ship or HUGE head like frames like the Dominix … it looks like a shoe! …it just doesn’t make sense, makes me feel the gallente designers want it the american way (big, expensive, bulky and ugly) or how about the Hyperion REALLY? engines HAD TO BE IN THE MIDDLE?
Engines mounted on pods well off the axis amidships on gimbles would logically give the best performance for actually steering the ship… And the battery on the front with a minimized forward profile makes a lot of sense.
Dominix gives near maximum internal volume for a given quantity of hull plating.
Sansha ships make sense if they need an axis of “x” for a component and are relying almost totally on shields.
The model which actually bugs me at the battleship level the hyperion and derivatives. The split hulls would add several kinds of annoying complexity in almost every way.
Personally, I like Trig cruisers, probably why I have 10 of them. On the whole I’ve never found Amarr ships to be that appealing. Although, I do have a load of Amarr ships as the only weapons my main can use are disruptors, lasers, missiles and drones. What people like and dislike will be different for individuals.
The problem you have is you are trying to limit yourself to the current level of human understanding.
If a cube and sphere work for the Borg, I think almost anything works.