The least useful improvement

[geofelt]

I never build a palace.(only once when barbs destroyed it).
Courthouse lets you celebrate under democracy if you don't get hanging gardens. I never build nuclear plants either.

[Shaft]

I seldom build granaries. Onlx once in a game I build some and the others were surprised by my huge population.

Some days ago it was the first time, I built Nuclear Plants. It was an OCC.

And I never ever built a Palace and as far as I remember I didn't build a Police Station.

[Mercator]

I rarely build any of the improvements which have a Wonder replacement, Port Facilities (I rarely build fleets), SDI's (no need to without nukes), Courthouses and Colosseums (the last two are really only needed in the end-game to ensure WLT_D and more happy faces for a higher score)... But then again, I only play SP on the medium difficulty levels.
Because of the unfair competition of the worst improvements with the better Wonders (perhaps the wonders should actually be considered as an instance of the improvement in this discussion), I'd say the Courthouse is worst.

[atawa]

Originally posted by geofelt
I never build a palace.(only once when barbs destroyed it).

[Marquis de Sodaq]

Originally posted by debeest
If you want research laboratories, build SETI instead.

I forgot about those. Right up there with nuclear plants, then.

I like courthouses - lower corruption, then a happy face in democracy. Good return, imho.

[Scouse Gits]

Yup - courthouses are seriously good news ...

SG[1]

[Shaft]

Actually I only build Courthouses´in a democracy but they're definitely not worst.
Only once SDI was necessary - now I'm landing on AC when the AI is still researching nuclear theorie.

[-Jrabbit]

In my limited experience I've found no real benefit from the following --

Nuclear power plant
Police station
Capitalization

In addition, since I learned to celebrate, I've never again bought a granary.

But relative to most posters here, I'm a complete tyro, so what do I know?

[Messer Niccolò]

WOW!

No police and rarely cathedrals.
Seldom SAMs and ...never built a science lab.

[Rufus T. Firefly]

I don't think it's fair to count cathedrals, power plants, etc., because I would build those if I didn't get the Wonders that provide them automatically. And I do tend to build courthouses after I get Adam Smith.

So I've got to go with police stations. I never go for Women's Sufferage, either. If I'm a democracy, I don't warmonger; if I'm a war-mongerer, I don't handicap myself by staying in democracy. And if, as a democracy, I need troops in the field at that point, it's just easier to have my SSC support them, since it has Shakespeare's in it.

[MrWhereItsAt]

Power plants I built once just to see what they looked like 'cause I realized after three years I had never built one...

Collossea (sp? It doesn't look right) are the last improvements I ever build though.

[Carolus Rex]

Granaries and SAMs.

Carolus

[TCO]

port authority is useless. Who needs vet ships.

My navy is transports...