Ever since I turned 10 and realised I would die eventually, like everyone else, I chose cremation. Why? Because, first of all, cemeteries occupy way too much territory and I always thought it would be better to use these plots of land for more constructive and productive reasons e.g. for cultivating more cereals, fruit trees, vegetables etc. or/and for reforestation. Second of all, I believe in the circle of reincarnations and that is the main reason why I don't give a damn about my body (at least in such a fashion) and I'm not that attached to it to waste my time pondering how shall I preserve it and whether my ancestors will occasionally drop by my tombstone and leave posies of faded flowers. And I also conjecture that it's kind of more respectful to commit this precious vessel to the fire because the element fire is the purest element there is and I would rather see my body turned into a pile of ashes rather than rotting in a coffin and being devoured by these disgusting worms, bugs and other creepers. And besides I always wanted to be cremated either in a Viking fashion or under the pyre made by my closest and nearest friends.
Interesting how belief influence the way one wants to be disposed of. I enjoyed reading your post.
As for my belief, when I am gone, it's not really that I am "gone" it will be a case of ceasing to exist what I believe. Therefore I would like natural processes of nature to take over my body. Also together with no casket, also nothing traditional in the sense of a gravestone or any of that. If the loved ones wants to, maybe just a little heap of ground to indicate the spot and maybe some marking to mark the spot, but definitely not a traditional permanent marble or granite gravestone. This way, the site will be re-usable within a few years, and the soil will be extensively richer in nutrients.