I used to wear boxers back in the day, but then I grew up and quit wearing my pants as baggy and boxers just weren't working out.
Then I switched over to boxer-briefs, but the issue with them is that they stretch out over the course of the day, so by the end of the day they fit essentially like boxers.
Then I switched over to briefs for probably 4 years. The issue with them is that the legs stretch out on them (or maybe my legs aren't big enough) and they don't shrink back when washed.
THEN..... My mom bought me a pair of the Under Armour Boxer Jocks for Christmas last year. They are supposed to keep you dry when you work out. Anyways, once she got me these, I started wearing them exclusively as underwear. Best decision of my life !
They are like $20 a pair, though, so it is kind of an investment.