I've never really understood how anyone can arrive at the day before polling and still not have decided. You've had at least 3 years to think about it!!
I have no meeting of minds with any of the parties even the closest to what I prefer. Each has a major plank of their campaign that I don't want to support.
Ah well. That's been the case since the first elections I imagine.
You just have to pick whichever one has the most in common unless you start your own party!