I am biased since my dad sold locks for 25+ years.

Double cylinder all the way.

Getting out in an emergency? Smash the window near the door. After all, that is why you had to put in the DC.

An emergency key can be taped to the top of the door frame.

An added bonus, it slows down the bad guys from carting your stuff out the door. All the while the alarm is screaming.

Security is all about layers.