Similar politics: Destruction of the Uchiha clan. Military domination over diplomacy and economic domination.

Similar methods: All of Roots' methods, including their training. Conniving and backstabbing as a way of life. Working with common warlords for short-term gain. Similarly, stirring up regional conflict for short-term gain. For example, when Danzou worked with Hanzo and discovered Nagato. Kills allies to further own purpose.

Similar goals: Destruction of the Uchiha and Senju, control over Konoha, World Domination.

Similar skills and strengths: Sharingan, masterful control of information and manipulation. Parts of the "methods" section fits here too.

Other similar characteristics: Utterly untrustworthy.