This is caused by your psychological state, the mind is more open to the notion of "Lucifer" than the very probable negative association you have with the name Satan, even if this comes from a lack of conscious non-familiarity. Lucifer, as a name to some people, may have been advertised more than the most beautiful name, Satan, which is often perceived incorrectly by people. Studying and getting to know, will resolve this, this is not an issue, especially since you question and are curious about it. Satan is the most powerful and realistic name of the Being we refer to as Lucifer (this being a title and occult complex symbolism) or any title you can come up with to relate to the glory and beauty of Him.