I wear briefs and boxer briefs, since I am in workout clothes a lot throughout the day. As far as name brands, I have tried a lot of different ones. I have everything from D&G down to Ginch Gonch. To tell the truth, I just bought some Merona boxer briefs from Target and love them. They have a great pouch and the cotton is a nice quality. They have more room in the front than Dolce and Gabbana, which is weird since I thought Italians would need the extra room.
Have you looked at internationaljock.com? I have gotten a lot of different pairs from there and enjoy their service. Just a suggestion.
I've tried to go commando, but I need the support, lol. I can't jump around with my clients and have my dick flopping everywear...gets a little awkward.