I like aeropostale jeans. They were cheap and they fit me well.
For t-shirts I pretty much wear the ones I get for free from stuff plus some random ski shirts or whatever so I guess most of my t-shirts are made by Hanes. For underwear I like Jockey but American Eagle boxers are pretty nice but too expensive. For socks I have a whole bunch of reebok socks I got at the outlet and some generic socks from Sam's Club.
i dont really know my favorite brands, but i try to dress nice for the most part. alot people wouldnt guess im a skier by the way i dress, but whatever, the ladies like it.