Both dramas are taken place in/around the royal palace, with both FLs having a strong sense of justice. In my opinion, FL in Princess Wei Young is smarter and doesn't get herself in as many issues as FL in Legend of Pheonix. Both ML's remind me of each other, both in love with FL, and are there to help/support FL when needed. Legend of Pheonix is more strategy whereas Princess of Wei Young is more drama/scandals, but both work around helping the empire. Think overall, Princess Wei Young was better.