I can recite the Greek Alphabet - and very quickly at that.
Do you have a match? We can have a pissing contest and see who can say it through the most times before getting burned.
In all seriousness, why does it matter? What does knowing the Greek alphabet have anything to do w/ being a good or bad sister/brother, or make any umbrella group superior to another?
I'd rather have my members know what their letters mean and live it in their daily lives, than to challenge their knowledge of the alphabet of a language they don't use every day.
But that's just me.
ETA: Is there more than one Greek alphabet? The O.P. keeps referring to the "Greek alphabets" so I might be confused...