I like frozen yogurt more. I can't find it in any local stores anymore, unfortunately. It seems like everyone went through a very short frozen yogurt craze around here and now they're back to ice cream.
Depends on the flavour. I think I like frozen yoghurt best. When I go out for ice cream, I'd much rather have a bowl of soft serve frozen yoghurt than ice cream -unless- I can find mint chocolate chip with shaved chocolate, not chunks. And they also have to carry rainbow sherbet with lime, raspberry, and orange. I love rainbow sherbet on top of mint chocolate chip.