Neither, I use Underalls!
Underalls?
http://www.rubylane.com/ni/shops/paperteria/iteml/245
underalls are on the left.
Oh god. That is…WOW.
::Tries to cover his breasts::
Yeeeaaaah…
(Note- just had to add this in, a picture of me in my favourite pair of boxer shorts. Note where the crutch is… :-/ 
Boxers. Loose and comfortable.
Boxers
Me and my friend both agree that briefs are man panties.