Get me down to / Take me down to

The context is when you take a taxi and want to ask the driver to go to city center, Which one is correct :

1) Get me down to city center.

2) Take me down to city center.

Although there are other bits of your examples that sound unnatural or ungrammatical, you can use these almost interchangeably:

Please take me to this address.
Please get me to this address.

The "get me to" construction sounds more urgent, but the "take me to" construction is more polite.