I know 9 Alexanders and there were even more still when I was at school and sixth form. The one's I know personally are mostly 18-19 years old, except for one who is 11 and another who is I think about 6.
Most of them go by
Alex,
Alexander or
Al. But three of them go predominately by their surnames probably because there were so many
Alex /
Alexander's and there surnames's are more unique than being just another
Alex.
I think it's handsome enough but it is overused as both a first name and a middle, I much prefer
Alexey or
Alasdair.