Body frame vs earth frame

Hi,

What is the benefit of the pitch angle become the roll angle and the roll angle become the pitch angle in body frame (acro mode). Is body frame stable than earth frame.
For me earth frame (stabilize mode) feels natural when making a turn. I dont have to compensate for pitch becoming roll and vice versa. Means drone flies sideways at a turning while forward flight until i compensate for that.

Regards,
James.