Constituent Standards and Account Hygiene

Is there a standard procedure that's followed for how constituent data is gathered? 
Our facility has had varied constituent data implementation over the years 
(Ex: 369 West Way Dr; West Way Drive; West W Drv; etc). 
We are currently synthesizing all our past constituent records so that they follow one agreed upon template. 
Working from your past experiences, has there been an agreed-upon method that works best across the board for anyone? 

This is a small picture of how our account data is formatted currently.