Favorite Relational DBMS?

A simple poll, I personally prefer PostgreSQL, I was a fan of MySQL before it was acquired by Oracle. I know that there are more than a few relational DBMS, but I chose to include the, to my knowledge, currently popular ones.

I have always used MySQL so... But SQL Server (Microsoft) it's as good as MySQL imo.

I have touched MS SQL and MySQL and i like MySQL more.

Less pain in the ass to be honest.

I've only worked with MySQL and SQLite so far and I definitely like MySQL more.

FAKKU uses MySQL and I've always been a fan of it. I've also used Oracle a lot, and MongoDB for some side projects