Comfort and fit. It if doesn't fit, it won't be comfortable. If it isn't comfortable, you won't want to wear it.
I prefer front-closing, lightly padded bras. On long drives, the back-buckle bras can become quite uncomfortable when the buckle puts pressure in the middle of your back. You also don't have to do the 'twist' to wear a front-closing bra.
Initially, I loved wearing a bra. They are one of the most affirming pieces of clothing I have. after a few summers, I realized how hot and uncomfortable they are. Now I rarely wear one.
Love always -- Jessica Rose