I would love to fight against my own builds.
Analyze how my AI settings behave so I can make tweaks.
See who is stronger against whom, etc.
+1 Need that kind practice since im on making 1 build that complete null any attack on it. so i will need this for test shot it with Xtreme build.
Great suggestion @dhenning 
I totally agree so i can see how my AI settings are working.