i also say mckayla and myles
i like Mikayla (one of my dd's is Michaela) and Myles, too.
I like Sydney for a boy and Emory for a girl.
I like Sidney (or Sydney) and Myles.
I voted Sidney and Myles...I like Makayla but I teach and it is becoming quite popular...I've only come across with one Sidney in the past 5 years.