http://cybernations.lyricalz.com/alliance-damage-compare
Made it specifically cause I wanted to see how much DBDC's interference would change the stats, but it doesn't seem like they're getting involved, more of a raid or it doesn't seem they can with NS barriers and all.
http://cybernations.lyricalz.com/alliance-damage-compare?alliance1=MI6&alliance2=Kaskus
This tool compares alliance damage for two chosen alliances.
New features coming up, within a day or so.
Most destructive war
Who dealt the most within x amount of time
Who dealt the least within x amount of time
Who lost the most within x amount of time
Who lost the least within x amount of time
So watch this thread for updates
Please let me know how accurate this is for you, haven't had much time to test anyone's data.
Also please note, currently it's set to by default only display damage data for the last month (30/31 days) only.