I still do not understand all that "international" name thing. Its nice to have a name that fits place one lives in or culture you belong to where ever you are.
Apart from the fact, that the world is getting more and more "international" or globalized, whatever you want to name it.
I personally don't really like the name Alex + all longer versions and variations of it, but that's just my personal preference.
Ekaterina on the other hand is a nice slawic name which is not that much used in western countries.
I would always look for a name that's not overused, but it should also be a name which doesn't give chance for strange and hurting nicknames later in school, since your child will have to live it's whole life with that name, not you

Another thing you have to remember is: a child has normally two parents, you should both be happy with the name

I myself haven't really thought about a name for a boy yet, but a name for a girl on my list would be Valerie.
Btw: It's Katharina in Germany
