Assume a standard western domestic toilet 1
and a standing position.2
Where north is the far side of the bowl, where do you aim?
Rather than making this a poll, I'd like to know what place to aim is objectively best.
Splatter: What goes in the toilet should stay in the toilet. I think aiming into the water is likely to cause the most splatter (I sometimes see leaping macroscopic droplets). I have not tested this hypothesis.3
Am I right?
Noise: aiming for the water at the center of the bowl is noisy, likely audible outside the washroom. Aiming above the waterline is far quieter.
Aesthetics: Aiming east or west near the waterline gets a nifty whirlpool motion going, clearly a plus.
What other considerations have I overlooked?
My current target of choice is south, 2 cm above the waterline. This seems best to me, but previous threads1
have suggested that north minimizes splatter in a urinal. Is there some reason to think that north is best with toilets as well?
All things considered, where is best? I'm asking this as a serious question, more or less. Anything I do every day is worth doing right.
(1) A toilet, not a urinal, outhouse, squat-toilet, snowbank, tree or anything Japanese. For askMeFi discussion of urinal targeting, see here
(2) A sitting position presents a different set of problems. You can expect much less noise and splatter (E=mgh) but any splatter will probably land on you, particularly a problem for those of us with dangly bits. It's a more difficult problem to solve since aiming options are restricted, particularly for those of us who don't have dangly bits.
(3) I can't imagine actually testing this. Food coloring in the bowl?