They're the same thing. "Hypo" is short for hypomelanistic, which is a reduction of the dark pigment. "Orange ghost" is just a nickname for one of the types of hypo expressed in ball pythons. Orange ghost is, by far, the most common form of hypo in balls. So you can't say that one is better than the other, unless you're picking out another specific type of hypo, such as green ghost.
99% chance that the "hypo enchi" you mention is exactly the same thing as an "orange ghost enchi". Same gene, same morph, different ways of referring to it.