I do. Not only is it less crowded (here, it's tourists that leave) but I love the cold weather. I like my winter cycling clothes better, the knickers, wool jerseys, and knee high socks. I'm faster in winter, and I get less sweaty. And, from Nov to March, I rarely get passed by other cyclists.
The things I don't like as well-- my nose runs constantly when I ride in the cold, and I miss the late sunsets of summer. There's more student traffic, which isn't that different than tourist traffic. More layers means more laundry. Ice keeps me inside. Even with all that, I do prefer winter for riding.
'02 Eddy Merckx Fuga, Selle An Atomica
'85 Eddy Merckx Professional, Selle An Atomica
'10 Soma Double Cross DC, Selle An Atomica
Slacker on wheels.