Different levels of structures' strength?

[yottabyte]

Another way of doing it is to not allow tools to be used in an enemy town. You would have to break everything with your fists. Naturally, a thick cobblestone wall would be harder to break through than a wall of logs, and it's also possible to do with a server plugin.

Also the problem with this is cobblestone is just as easy if not easier to get in large quantities for wood. Why even bother building a wooden wall if a 3x better cobblestone is the same amount of effort?

1. Plant saplings in a straight line
2. Use bonemeal on all of them
3.
4. Profit

But seriously, you're correct. But at the same time, stone walls are more effective than wood walls irl too.