What use is the new and improved phalanx?

[Mountain Wumpus]

I searched some 5 forum pages, but it seems this hasn't been brought up at least recently.

Edit: Argh, I searched for "phalanx" in the title. This thread is earlier, please use it: http://forums.civfanatics.com/showthread.php?t=235058

This one can be closed/ deleted.

[snipped]