Would you work in isolation for 3 months stretch?

I could do it. Before the forests all burned, I often contemplated life as a forest lookout.

Absolutely -- better than my current gig in a newly renovated crowded call centre like setting (more like battery hen setting)

I'd opt for the the lighthouse - great views, love the ocean, I could read and watch whatever TV or movies I wanted without someone else trying to change the channels. I would like to have a dog with me though - if that was the case I would be all set.

Not Antarctica - don't like the cold or the space station - not sure I would like to be in an environment where it was unnatural for me. Especially thinking of the food, and other stuff you need to handle with little gravity.

The lighthouse would be awesome though.

The lighthouse job sounds good.

As for isolation, there's less of that these days what with all the modern communication forms.