Scootaloo Fanclub Member
I voted for Allughz Alkhabith, after looking up the meaning of the suggested names. Though, since probably no one else than me and the one who suggested the name in the first place knows the meaning of it, it probably needs a little explanation so that people here know what they are voting for. Which is probably too late, since there are already 763 votes here, but I'm adding it anyway, to show why it would be a really good and probably the best name for her:
Allughz is the arabic word for Riddle.
Alkhabith is the arabic word for malignant.
Now, in arabic language, "Alkhabith" is always put at the end. But if we change the order of the words, "Allughz Alkhabith" translates to Malignant Riddle.
So the name accomplishes two things; it describes the Sphinx based on her talent/profession/occupation, as pony names do, as well as personality, and still gives her name an egyptian touch by translating a possible english name for her into arabic language.
Simple and effective and more creative than giving her the names of pharaos or egyptian landscapes. Too bad that it will lose because barely any of the voters knew what the name means.