I like Toffutti a lot, but can only eat very small quantities because of the fat - I haven't tried the other brands you mentioned so I'll give them a go. But what I really want is a good strong Cheddar or some crumbly Wensleydale - oh and a crisp juicy apple to go with it! That's my fantasy ...
BTW I found this recipe for crisps, but I haven't tried it - it still has some fat, which could be reduced further I'm sure, maybe using a spray instead of oil? It would probably work with other root vegetables, eg parsnips, beetroot, too.
Homemade Low Calorie Potato Chips
Ingredients: 1 large potato, scrubbed clean and sliced 1/2 teaspoon olive oil salt or seasonings
Instructions: Pour oil in a plastic Ziploc baggie, along with whatever seasoning or spice preferred.
Put potato slices in bag.
Blow up the bag and quickly seal it shut.
Shake vigorously until all the slices are coated.
Arrange slices in a circle on a microwave-proof plate.
Microwave on high for 4 minutes.
Turn chips over and re-arrange them so they cook evenly.
Microwave again for 2 minutes.
Turn.
Watch them carefully and microwave again for about 2 minutes or until they start to brown.
They must brown a little in places or they will not crisp up.