I'm not sure about Halberd being better than Delfino anymore... its main advantage (easy recovery to stage) only applies when you are not on the deck, and that is a large part of the time you are on the stage. On Delfino, you are probably on transformations with that advantage more % of the time than you are on Halberd, since the only transformations that are a pain to recover onto are the sandy islands and the grassy islands. The others are either walkoffs or you can recover up through them. In this respect, Delfino > Halberd.
On the terrain front, Halberd has Metal on the starting stage (good) and Basic on the deck (okay), versus Delfino has Grate on the starting stage (more purples than Metal) and the other transformations are mostly Basic (okay), with a little Water (no reds = no filtering), and some Cloth (don't pluck on the umbrellas... more reds = bad). In this case, if you pay attention to where you pluck, then Delfino > Halberd.
In what ways is Halberd superior to Delfino? Am I missing them?