Im very much into alternate realities. I followed the tv series sliders, the movie the one, and the alternate universe in star trek deep space 9. I would love to play one out with you, perhaps where one of us crosses over, but what world, the possibilies are endless.
One where the axis powers won ww2, or the south won the civil war, where the roman empire never fell, the one would be interesting. Harry turtledoves books are so good for that genre.
Let me know if your interested.