I've always considered Partners In Time's iteration of the Peach's Castle music to be the best one in the Mario and Luigi's series. It really gives off a groovy unbeat vibe that's fun to listen to. That of course does mean said music is better than Bowser's Inside Story's version and certainly a HELLA LOT BETTER than Superstar Saga's version. Now, hearing this very theme in the Bowser's Inside Story soundfont, it feels like it has a higher pitch and sparks off more happiness.