Wherever it is easiest, least expensive, and, if relevant, most meaningful to those who survive me. Phrased that way, because we tend to have an idea of who will survive us and handle these final arrangements, but we can never know with certainty.

Honestly, what will you care? The only reason you need to care now is to shoulder as much of the administration burden as possible now, to save your survivors (presumably, loved ones, but perhaps not) the trouble. Obviously, you will not care later.

Funerals and memorial sites are for the living.