I'm not one to usually comment on these topics, but my choice would be burial and I wouldn't necessarily want to go into the ground.
I would like to own a large house one day with a lush garden in the back yard, there I'll build a small mausoleum where I will inter myself in a stone sarcophagus in the center of the room, with family members along the walls.
This may all sound pointless and expensive to my fellow users, but it's how I'd like things to be done. Any descendants can pay respect or visit their predecessors in one place or don't visit at all and leave it in silence and solitude, either one is appealing to me.