Which name do you prefer for the imaginary COMPLETELY REAL planet upon which all of our imaginary COMPLETELY REAL nation-states are located?
Digiterra sounds more like a real planet name to me, and for that reason I tend to think of it as the "real" name. But I love The World of Bob too, not least because it's fun to say stuff like, "What on Bob do you think you are doing?!" So I could go either way. Digiterra for the official name, Bob for the vernacular. Just like we have Terra and Earth.