McDonalds = the last place I'd go for fast food. Ice cream? Ha. They decided they could do Blizzards better than Dairy Queen and then shrunk'em down to intolerably small cups. DQ's got the big-ass Blizzard cup and the long handled plastic spoon so you get a lot more bang for your buck.
Plus their burgers are too small for the price that they sell them.
I love Burger King because I used to have it all the time :P
My personal favorite fast food: Taco Bell. Too expensive, though.