Under which conditions would you survive longer?

ok, so obviously by ruling out buoyancy you understand that if you were wearing lots of clothes and fell in they may very well drag you under, but lets ignore that for now.

Heat loss wise it is much better to leave your clothes on. Although they will be wet they will limit the movement of water directly against your skin, and so although you will still loose heat by warming the water that forms the layer between your skin and your clothes, this will not expend nearly as much heat energy as your body trying to heat the entire ocean.

Fantastic question, had to think about that a little bit. It would probably be best to keep your clothes on, because then even if your clothes are soaked through, less water is directly touching your skin than if you were naked. Also, there's a greater chance of your body heat being contained in your clothes. Why? Do you plan on falling into the pacific any time soon?

nicely, once you talk that those with the poofy outfits have been those with money, showers weren't invented, and demanding exertions became for the peasants, i ought to final an prolonged time. yet then there wasn't any discomfort medicine, air con, and human beings purely lived to their 40's. So i might final a pair of week

I don't think it would make much of a difference either way, getting to land or a ship would be the only way you survive more than a very short time.

keep your clothes on