>>37624532I wouldn't say all of them. Mind you, I love her covers, but she plays fast and loose with them at times to try new things, and it doesn't always hit.
That said, Hokori Takaki Idol is easily the one I'd point to first as being better than the original, with Envy Baby and Undercover being contenders. Also, fwiw, her cover of Empress has surpassed the original
though that isn't terribly impressive, relatively speaking 
