What height gap between a man and a woman you find the most attractive?

He's 1-3 inches taller than her
He's 4-6 inches taller than her
He's 7-9 inches taller than her
He's 9+ inches taller than her
She's 1-3 inches taller than him
She's 4+ inches taller than him
They have equal height
Select gender and age to cast your vote:
What height gap between a man and a woman you find the most attractive?
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