What actually stands the test of time well?

[kakhome1]

Listed are the ten oldest well known custom missions that I can think of. Which ones still hold up as a high quality set in your opinion?

I'd have liked to also have included Konflict at Karon and Obsidian (1999) & Project: Hydro and Lost Levels (2000) but poll option limit doesn't allow it unfortunately. But they can definitely be mentioned in comments still.

[LightWolf]

Definitely voted for the majority.

[Alter-Fox]

Haven't played these in ages. Would need to give them a playthrough first.
I would say Entropy 1 and 2 and obsidian would have to stand the test of time as that style of geometry is very much what Luke and Dan are building for Overload now.