Hey Tomy: I switched to boxers from briefs 5 years ago, and have tried many different brands.
The ones that I like the most for everyday are FTL standard full cut boxers made from the 55/45 blend fabric. They are very lightweight and pliable. You can find them in multi packs at Target, K-Mart, and Wal Mart - all the high end stores. L.O.L.! Bang for the buck!
Otherwise, I have some boxers from Brooks Brothers that are very nice, too, but in a different way than the FTLs. I bought the Brooks because they are bold stripes, and I love striped boxers. I honestly like the FTL the best.