Eh, the concept of hell really varies a lot by denomination, from the classic burning hell in Catholicism to a more "internal" hell of separation from God in Eastern Orthodoxy. I personally subscribe a bit more to the latter than the former, because I don't understand why a loving god would punish his children who disobey for eternity. In this latter view, Satan is merely an angel who rebelled and was kicked out of God's presence, and thus his only goal is to ruin things for the rest of us.