Queen didn't feel as impressive as I expected but Sanji was definitely way better than what I thought.
Assuming Sanji won, this chapter is deeper than just Sanji winning this fight. This fight proves Sanji's not a failure, and that he's actually Judge's greatest creation.
Like many of us already said, Queen's telling Sanji to use RS because wanted to prove he's better than Judge, not because Sanji used it on King—Queen wanted to do it using Judge's technology ironically.