I think a normal burial is ok, albeit expensive. In that case, I'd like to be able to build my own casket/coffin at some point during my life, so my family won't have to buy one. Doesn't matter where I get buried though.
So either that, or cremated. Being transformed into a jar of ashes would be neat. Plus, if my family kept my ashes, they could creep out the grandchildren with them.