If the potatoes are fresh (as in freshly harvested) …I have always preferred them cooked with the Jacket 0n. The crispy skin flavours add another dimension to the fresh potato taste.
Being a keen kitchen gardener, both at the home terrace & at my farm, I have the advantage of having access to baby potatoes almost four months a year (since I, deliberately, practice staggered sowing). I prefer harvesting them at this stage, because only here one can enjoy the freshness of the young potatoes. To allow the potatoes to fully mature before they harvest, and then can be stored for a longer period, doesn’t make sense since the mature potatoes are available in the market round the year anyways.
Cooking and consuming absolutely freshly harvested potatoes is an experience beyond words. One really needs to do it to realise what I am raving about.