What "Type" of Change is Best?

Growth is all about change. But what "type" of change is best?

Is it better to change our behaviors? Our beliefs? Our perceptions? Should change go from the outside in? Or from the inside out?

It seems like everyone you ask has a different opinion. Everyone has something they believe is the key to change. And an "All you gotta do" that worked for them.

But what is the best way for YOU?