I used to say males, until I got cats of my own. Meko who is a female is JUST like a dog, loves to be carried, petted, kissed, belly rubs, petted backwards, knows tricks (shake, kiss & ALWAYS comes when called). She LVOES kids.
Tiki who is a male is good with kids but nothing like Meko. You can litterally do anything to Meko & she just sits there, even nail trims, ear cleanings, brushings etc...

I now think its not the sex of the cat it's the individual cat.