Depends on where I live.
When I grew up in Northern New York (aka IP country), winter was bitter and brutal but spring was just Mud Season when all the snow melted, and still plenty frigid to boot. So spring.
Now that I live a lot further southwest I love fall and spring, don't mind "winter", and hate summer. Too dang hot and humid, my northern bones can't hold up. I even get "summer sick" where I can't eat much and feel crappy when it gets too humid.