I really wouldn't say that Pizza Hut is fast food. Some of them have buffet's for lunch, but I dunno if that counts.
DEFINITELY Chick-Fil-A and KRYSTALS!! Man I LOVE Krystals. I have some cryogenically preserved in my freezer because there aren't any above North Carolina, pretty much. I went to a White Castle in Ohio which I was always told was similar to Krystals, but it wasn't nearly as good.
Other than that, good to see Subway with a healthy lead - I'd say it ties with Taco Hell - I mean BELL - for me, but Subway is better for you hands down.
Jeff