What is the difference between these DNS servers:
Main purpose of using is top anonymity and privacy and security.
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As is your question does not make a lot of sense, and is not necessarily very on-topic here.
First, do you think everyone knows these IP addresses? Why not speaking directly about the organizations you are speaking about?
Now, the choice you present is not really a choice: whatever you choose, you need to remember that DNS queries and replies are sent by default in the clear, and that you need to trust the recursive DNS you choose as it obviously has a detail about all your queries. So any actor with enough power could easily abuse these 2 facts.
If you want to gain more "privacy" and "security" you should instead investigate the following in no specific order and sometimes used together: