The Karen Eco Lodge about 1km NE of Mae Win looks a very interesting place to stay. Reasonably fancy, near the Elephant parks, rooms im told are about 1,000 bht a night.
They have a pretty cool bamboo bridge across the river
Karen Hill Tribe lodge
Sprawling rice fields, deep green valleys, lush jungle and meandering rivers: the view from the balcony of the Karen Hill Tribe Lodge is unforgettable. Set to a dramatic mountain backdrop, from here you'll see no buildings, roads or power lines. Don't forget your camera.
Built in the traditional Karen Hill tribe style using local pine and bamboo, the lodge interiors have been kitted out with European-style home comforts to make your stay as relaxing as possible. Unlike some of the other accommodation in the area, here you can enjoy your incredibly peaceful location while relaxing in the knowledge that hot water, electricity, comfortable beds and built-in mosquito nets await you after a long day on elephant back.
Keren Hill Tribe Lodge Features
7 twin rooms
3 double rooms
Every room is equipped with comfortable bedding, electric lighting, fans and mosquito nets.
Every room has a private bathroom with a hot shower
Atmospheric dining area, using fresh local produce as well as supplies from Chiang Mai
Lodge bar
Log camp fire every evening
Outstanding natural scenery
The Mae Win area is all set up for elephant safari's, see the link below
http://www.asianelephantsafari.com/home
GPS co-ords of the Karen Eco Lodge near Mae Win