Well, they are all nice but #2 seems more dynamic. In #1 and #3 the milky way hangs over the lighthouse (which is fine) and is better exposed than in #2. But I think the strong diagonal lines in #2 give it a quality the other lack. I think you could have got a better shot if they had just turned the light down a bit.
Unfortunately I never got to Cape Leveque. We took the beach-side road (not the more inland road you went on) and wound up very up-close and personal with some mud flats just before sunset. I've never dug and jacked so fast. We got out OK and ended up staying at a beach for a week without seeing another soul. On the way back we got talking to one of the last traditional owners who was passing his knowledge on to a white anthropologist because 'the young people don't care'. I learned how to tell if a paperbark is growing on salt-water or fresh-water (and so where to dig for water) and how to get honey from native bees.
BTW did you get any sleep on the trip??