I implemented this comparison tool myself because is shows comparison of the long painful to read AI leader properties in a diffrent way.
Its an half tool because you can upload your one's Mod CIV4LeaderHeadInfo xml!
Its a web page also, the download goes there.
*Tags descriptions from http://modiki.civfanatics.com.
CIV 4 BTS AI Leaders Personality Matrix Revolutions 2016-10-05
I implemented this comparison tool myself, leader properties in a diffrent way.