I have no problem with square ships...but you do need to be careful when you make them to make it clear that square was the point, rather than because you didn't have enough slopes. Using your example, the Borg cube is designed for space only and is just a cube, so I think it makes sense in a weird kind of Star Trek way. If on the other hand one of the sides was a dome, it would have looked odd. To me the back of your ship pulls it off well, but the front doesn't. I suggest sloping up the front more, or blocking up the back so it looks more consistant. The landing gear need some tweaks too; using just 4x2 doesn't look good in my opinion.
This reminds me of a squarer and white version of a ship of mine...
Please don't say things like that. A mod (Hinckley) and an admin (Vader) have already said the same.
Anti-grav? Ahghhghhhhghhhhh! *sing*