my fav era is ARTPOP and born this way :) Artpop because I meet first ex girlfriend and we were dating in 5 months plus I also meet Gaga the year after she broke up with me and born this way becuase Gaga learn you to be yourself , be don't care what people think about you ;)
At first this will sound like a cop out but hear me out....all of the eras because each one has helped me thru bad stages in my life but Joanne has seared my soul to Gaga.
Mine is "The Fame" because I have been with Gaga from the beginning and that is when I fell in LOVE with Gaga and I have a lot of good memories about Gaga from that era - PAWS UP 4LIFE