I can't listen through headphones. I have ear issues. And I can't believe how loud some people listen to music on their headphones. I should go into the ear doctor business (I know there is a name for it.) I would make a killing.
And I usually can't listen to speakers because there is guaranteed to be someone in the vicinity that despises my music. -_- the pains of living with your parents.
So...the best place for me is the car. I love those aimless nights of driving around blasting THE perfect song and singing your favorite song at the top of your lungs. Good times, good times. Remember: If its too loud...you should turn it down!