Alhambra 20
Big Ben 24
Brandenburg Gate 20
Chichen Itza 26
Colossus 3
Cristo Redentor 11
Eiffel Tower 25
Forbidden Palace 10
Great Library 22
Great Lighthouse 12
Great Mosque of Djenne 14
Hagia Sophia 21
Himeji Castle 21
Hanging Gardens 25
Hubble 27
Leaning Tower of Pisa 25
Louvre 25
Machu Picchu 22
Neuschwanstein Castle 20
Notre Dame 25
Oracle 30
Petra 25
Porcelain Tower 23
Pyramids 26
Sistine Chapel 19
Statue of Liberty 23
Stonehenge 21
Sydney Opera House 17
Taj Mahal 14
The Porcelain Tower is great if you going for a Tall, specialist focused empire Meanwhile. Petra I find is too situational; not really worth building if you aren't around desert tiles.
Equally, Porcelain Tower isn't really worth building if you're on a duel map or otherwise have no prospect of making friends who can fund RAs by the time it comes around. Most Wonders are situational, and simply for balance the better ones should generally be moreso.
I once played an interfaith-dialog game: my conclusion: it is way better to spread your religion after renaissance, because cities are bigger-> more beakers and the AI doesn't mind the spread.
As far as I can tell, the AI only minds you spreading religion if yours becomes dominant in their cities. Nebuchadnezzar never minded even when Islam was no longer the dominant religion in his city, since Tengriism wasn't either (sadly it never became dominant again - too much pressure from Christianity on top of all my Tengri followers - given the size of that city). Which you don't want with interfaith dialogue because you only get the bonus while a foreign religion is dominant (which, when you're missionary-spamming, does mean you have to carefully milk your targets). I'm also playing on Immortal at the moment, where the AI routinely has capitals with pop greater than 10 before they get a religion in the first place. I hadn't used it in combination with Holy Orders before, though - that cost decrease really does make the difference (along with my having built Stonehenge, Djenne, Mayan Pyramids in every city, and taken Mosques as a belief).
My next votes:
Alhambra 20
Big Ben 22
Brandenburg Gate 20
Chichen Itza 26
Colossus 3
Cristo Redentor 9
Eiffel Tower 26
Forbidden Palace 9
Great Library 22
Great Lighthouse 12
Great Mosque of Djenne 14
Hagia Sophia 19
Himeji Castle 21
Hanging Gardens 25
Hubble 28
Leaning Tower of Pisa 25
Louvre 25
Machu Picchu 22
Neuschwanstein Castle 20
Notre Dame 25
Oracle 30
Petra 25
Porcelain Tower 23
Pyramids 27
Sistine Chapel 19
Statue of Liberty 23
Stonehenge 21
Sydney Opera House 17
Taj Mahal 12
We're mostly out of Wonders I dislike for gameplay reasons (except Hagia Sophia), so I'll revert to Cristo Redentor again for my negative vote, because this statue shouldn't be a Wonder and too many things that should be are now ranked lower.
Upvote for the Hubble Space Telescope because it's a truly inspired idea to include it as a Wonder (and I like the image when you build it), and although it's yet to turn a science game around that I wasn't going to win anyway (or lose anyway), it's always obtainable because the AI invariably defaults to building spaceship parts instead of the telescope, and the production boost is hefty.
