Hmm yeah me too I just wouldn't combine their popularity because in sound
Mary and
Marie are different enough to tell them apart easily. So if
Mary became the number one name I wouldn't say
Marie was too common to use because the sound is distinctive enough.
I would probably not use
Elissa because it's so close to popular
Alyssa and the difference is hardly to be heard and they will always get confused. But
Mary and
Marie would be different enough for me.