Ken Ham says everyone is biased, so what is the best bias to be biased with? He does not tell you.
The fact is you can be biased with the false beliefs and religion, or you can be biased with the truth. The difference is one will lead to death and error, the other to life and success. One is based on faith alone, the other is based faith supported by observational, testable facts.
You can tell the difference by testing and observation, the other leads you to confusion, destruction, and death.
Be biased with the truth! Read the uncopyrighted translation of the King James Bible to verify what you believe is true.