Other than just wanting a different aesthetic, there is no reason to vote for Arrowhead.
In fact, it is actively harmful to our design. We have chosen to build an interception/patrol ship that currently is too slow to be anything other than local. But, in the future, maybe it could have some interception ability with a Warp 5 Engine.
But, without a deflector, it will never be able to be fast enough to be anything other than a local patrol ship. So, if we were serious in our desire to build a military patrol ship, half--saucer is the only choice. First, because it is not yet fast enough. And, in the future, it will also have to keep up with other ships of similar technologies.
It'd be ridiculous to build a ship that can only go up to Warp 3- and no further.