I recently tried Duluth Trading Company's Buck Naked Boxers and Boxer Briefs. At first blush, they seem to be ExOfficio with a different waistband. However, I find they give me a bit more room below they fly, less bunching and the Boxer Briefs a little less tight on the thigh. The fabric seems to be exactly the same. Price on sale for the Duluth Trading company product is about 1/2 of what I have paid for ExOfficio Boxer Briefs.
http://www.duluthtrading.com/store/p...efs-76015.aspx
http://www.duluthtrading.com/store/p...ers-67019.aspx
They carry women's styles as well. While there is a price advantage, I am unable to speak to any differences in fit.