Ah, I see. Well, I think the point of that book was simply to say that behaviorally speaking, men and women often act like they're from different planets - not that the planets themselves are direct opposites. No, I'm sorry, I'm still going with Saturn. Granted, it wouldn't be a particularly nice place to live, given that it has something like 25 times the Earth's gravity (and maybe more than that - I'm just going by memory), but name me a cloudier planet. Anyway, none of the other planets in our solar system would be nice places to live - that's why we don't live there. (Well, that and our current rate of technology, but if science had revealed Mars to be a tropical paradise, you just know we'd have landed on it by now. There'd probably be resorts set up by this time. 'Come to Mars, the greatest vacation spot off Earth!')