Well, I have multiple ones because we started over a couple of times.
There's the first one which is the largest and most elaborate, but it's also blown to bits partly by TNT experiments... and I think people are bored of seeing that one again.
And there's the latest one which I'd say is the most fun because there's a basic house, a deep mine shaft and a roller coaster but still plenty of stuff to explore and mine.
The other ones are just little bastard maps that arent interesting.