@Sokel 's post is the only sensible reply here. All the rest are just people yelling out their favourite brands.
If I was to attempt to answer, I can only think of Accuphase for the following reasons:
They are a small, ultra high quality manufacturer, using the best parts available.
They retain a highly skilled small workforce.
Their range is not driven by trends and products remain in production for many years. Obsoletion is not an issue.
Spare parts are available for many decades. I ordered and received a volume knob for the first amplifier made in 1972.
They have zero debt, are fully funded and private- they answer to no-one except themselves.
Their products last forever- seriously, they just don't fail and if they do, they can be fixed at a reasonable cost.
You can send back any Accuphase product to Japan and they will fix it (at a cost).
They are fiercely loyal to their dealers in each country. Sure that keeps prices up, but competition on their own parallel imported gear is not what they are after.
Maybe they underpay their workers, discharge chemicals into a local stream and don't fix the leaking staff toilet, but I like to think otherwise.