Hmm. In my opinion, the second-to-last one looks pretty interesting. Don't forget, we're dealing with alien ships that run into space.
I didn't, really. My point is the following:
We are not creating any abstract art here. We are actually designing functional things - spaceships, which are supposed to transport people(aliens if you want), fly around and sometimes shoot laser beams. Those functions should be communicated by the design. The eye
wants to see something. Meaningless form is worthless.
Thanks for mentioning the borg cubes. The reason why those look interesting is basicly because they are so totaly different from any other space ships we know(variety!). Also, since we don't get any information about function they seam superior to us(those guys must have magic powers!).
But, on the other hand, if all races would have borg like ships - without any indication of function - it would be boring again.