Purely theoretical. The wonders are dependant on your playstyle. In my corner of the dominations world defense is a hobby with very little benefit. When i log off someones going to beat my defense with 2x30 generals 5 tactics, full mercenaries, and army. Im still upgrading walls so i need gold. Protecting gold is my main priority. From that standpoint a successful defense means more gold lost from partial defenses. Best case scenario is someone pops my exposed tc and leaves. Next best case is a full wipe. So while all my farming/raiding/grinding is focused on upgrading my defense(walls). Im not at a point where i want to win defenses. Every day i burn medals to stay below 2800 medals so even the medal loss isnt something i care about. So by that logic the statue of liberty air defense and kremlin wall buff are useless. For a maxed out player who only cares about medals and can actually get a defense win that may be a different story. But unfortunately players close app rather than log a loss so gaining medals by defending is not something that happens at top leagues. Also even with zero gold in storage. At the highest leagues finding opponents is hard. I attack maxed out bases just for the 120k gold league bonus. I win without tactics mercs generals. Even with max walls, kremlin, angkor wat, lvl30 generals defending. Further reinforcing that defense doesnt matter at the highest levels...where it could possibly matter. BUT when alliance wars comes. Or weekend challenges base defense versus AI attacks it might start to matter again. But for now im going to eliminate any defensive wonder as being useful. Everyone can agree that brandenburg gate is useless. That leaves all the offensive wonder bonused which is where the only real benefit is. Which gives us.....