YOU SAID:

my best friend lives in a different city than me

INTO JAPANESE

私よりも別の都市に住んでいる私の親友

BACK INTO ENGLISH

I live in a different city than my best friend

INTO JAPANESE

私は私の親友よりも別の都市に住んでいます。

BACK INTO ENGLISH

I live in a city other than my best friend.

INTO JAPANESE

私は私の親友以外都市に住んでいます。

BACK INTO ENGLISH

I live in a city other than my best friend.