I would not have been happy if one spawned right outside my house XD. I haven't tried creative mode yet.
I found my first true ravine...at the bottom of a deep lake lol. There was this odd hole I thought was an error on the lake bed but it turns out it lead into this huge ravine. It has a few lava falls and waterfalls as well as an abandoned mine. I hate hate hate the spider spawners in those mines >8|
Some more screenshots:



I brightened this one, Kaiza had a stalker spider XDDD

Skeleton staredoooooown.
EDIT:
I forgot one:

|D we were staring at that pig spawner for a very long time...and then compared it to a microwave XD