If the guy is very hot, 3" briefs are it.
Where is that hot hot hot photo of our new James Bond Daniel Craig in his suit? [drool]
Board shorts are ridiculous, IMO, no man looks good in them - including Jake - unless they're drenched, hanging extremely low and about to fall off of him. Men might as well be back in the 19th century wearing full wool bathing suits in the water wearing so much fabric in the water.