Both suck but if I had to pick I'd say freezing winters are worst! Not only is it miserable getting out of bed and heading outdoors, people are more unfriendly as well. So I'll take the scorching summer and just stay hydrated and go swimming or something!
I would say summer. I live in Canada, and the winters here can get pretty bad, but in the summer, we get the scorching heat with humidity and it's just no fun. I mean, it's good beach weather but not every day. I figure in the winter, you can escape the cold almost anywhere you go in the city, but not every place is air-conditioned in the summer, so the heat is harder to escape.
Hot summers are worst...because at least when you freeze you can drink hot coffee...and cuddle underneath a warm blankey...but in hot summerss...the air is unbreathable...u can passout easily and plus all the sweat and stinkyness in the air...the nudity and endless amounts of cold showers don't help...it still is hot...with all the ice coffee...and air conditioning...its gets all dewy.