I think the survey is a little general. I could answer yes to each question. I feed my axolotls almost exclusively salmon pellets. I guess if I went by weight of food I'd have to say the majority of the food I use is pellet food. That would be a misleading answer. I feed salmon pellets, earthworms, blackworms, crickets, isopods, mealworms, waxworms, whiteworms, and fruit flies to my salamanders. I also have a Triturus dobrogicus that eats a few Louisiana crayfish now and then. The live foods I use most are earthworms and blackworms.
O.K. my favorite food is salmon pellets. No it isn't it is earthworms.