Square all the way! I am too lazy to cut out the round and then have to reroll the scraps. Yes, I know it is not much work, but I am really really lazy.

And I put mine about 1cm apart so that when they rise they do touch.

Thermomix scones - best ever!

But I never put things in my scones - like fruit or nuts or flavours (though I will make an occasional exception for pumpkin).