Dawn....Good point!!! That's one point in favor of 777. But being lucky is not necessarily the same thing as holy (this goes for bebu's comment as well). Not that they ought to be, but it strikes me that holy things tend to have terrible luck (e.g. the Ten Commandments getting smashed, the Ark of the Covenant getting swiped by the Philistines and giving them *very* bad luck, two Temples getting trashed, the Bible getting corrupted, the saints and martyrs getting, well, martyred, etc.).
Narkissos....Hmmmm, tell us the scoop about 888. The only number I recall associated with Jesus was 318. I definitely like 888 better than 777.