What Expansion Do You Play With The Most?

I wanted to pick all of the above haha. I always play with all expansions, because otherwise I'll be mid playing and wish I had something from another expansion. I've heard of a challenge before though where you play through generations and each new generation you get to add in another expansion.. Tempted to try playing that way xD I think I like generations the most, but I use features from pretty much all of them in the beginning of every new save.