If you're attracted to females, which of these sounds most attractive?

Definitely not the case, I know loads of people who absolutely love green eyes. And being average height is probably ideal because no one will dismiss you as much too tall or short for them. I was just curious as to whether there was a common preference between the available options, obviously there are a lot of possibilities not covered by those. But you raised a good point, so I changed the blue option to "blue/green/grey" since those three are often easy to mistake for each other at first glance (and lots of people have an eye colour somewhere between the three)