I, like most men
purchase such items based on scent, this includes personal hygiene items as well, even dishwashing liquid.
Persil Original's scent has always appealed to me, it has an industrial and masculine scent, if you will, besides it is the only detergent effective in removing diesel fuel odors from my uniforms.
However, I do use unscented clothes softening dryer sheets so as not to have conflicting scents on my laundry.