The thing is, I dont think it's impossible for a building to collapse because of a fire. The fires were like nothing that ever happened to a building before, fires usually dont have tons of plane fuel to burn with, you know. Also, even if other fires burned for longer, you cant conclude from them to the fires in the WTC.
Even though the fire didnt have much oxygen, as it was burning inside a building, it could still have develloped a temperature of around 500-600°C, which depending on the steel could weaken it enough to cause significant structural weaknesses. Maybe the WTC was only designed to withstand fires you could get out with the sprinklers and not to withstand tons of fuel, burning directly on top of the steel structure.
Also, the other buildings may seem tall, but it's possible that only the top part of the WTC, from the lowest burning floor to the top would have made the others look like dwarves, so the tensions on the structure would be bigger, too, since there was more weight on the floors. I also believe skyscrapers are a lot closer to their limits than other buildings, since every ton of weight per floor weighs a hundredfold on the building's base, so damages inflicted to the structure are worse than damages on normal buildings.
All of this deserves a closer look, which I havent seen from anyone so far and unless I dont, I dont know what to believe..
A second point that puzzles me is, if half of the terrorists are still alive, why doesnt anyone perk up and say hi? Only one of them alive would mean that the official story is practically BS, but no one is doing anything like that