Well I think it depends.
What is your age? Do you think you will ever get a bigger wall tent in your life?
I am 64 , I am scaling down, becoming more independent as a lone hunter camper. So I bought a tent I could set up by myself and a Three Dog because I do not plan to ever go bigger.
You can always under fire a Four dog, but a little tougher maybe to over fire a Three Dog.
Look at it as the last stove you will ever buy, Choose one for your life even if you may some day buy another.
My buddy bought a Four Dog for his 10x12.
Is weight or size a factor. Price difference between three and four.
Decide what suits your life and future.
