I like it, but the fact that you've only met one does not change the fact that it is the 2nd most popular baby name in the U.S. Most Emmas are in kindergarden, or are even younger, and I'm guessing you don't have much contact with those children.
Middle names:
BrookeClaireCharlotteChristineCarolineGraceGabrielleHopeIsabelIvyIrisJulietJasmineKateKatherine, et. al.
LilyNicoleNoelleOliviaRachelRaquelRoseSophieVictoriaZoe