Vibe just named Eminem the best rapper alive in a poll that had him defeating Jay-Z in the finals. Sure I don't agree with Em being the best alive, but he's NEVER forgotten. I'd say sometimes Nas falls out of that list for some people, but very rarely will it happen. I'd say in terms of being forgotten, people tend to forget Andre 3000 because of the stuff he's done recently with songs like hey ya. Then there's guys like Lupe, Common and Talib, who people know who they are, but don't realize how good they are because they aren't on the radio.