That's also not a bad idea either for those who don't want to figure things out themselves, but I wouldn't want everyone having the same items in their cities anyway; gets quickly boring in those cases. For me, part of the fun is sitting down and figuring out how to make my city more efficient, which is mainly driven by how frequently I check my game.How about adding building efficiency measures to their wiki? Like coins/minute, passengers/land square, coins/minute/land square (what I use to try and maximize my use of land). That way people can try and setup their most productive city based on if they are trying to get coins or passengers. It will help people see which 1x1, 2x2, or 3x3 building might be most productive based on land available etc...
I personally think the Wiki should only focus on giving attribute information, while leaving the "tips and tricks" for the forum discussion or for the player to figure out on their own. Just my opinion though.