Personally I don't care much for microwave popcorn. I feel it can be unsafe for consumption due to microwaving popcorn. I prefer to use my Stir Crazy popcorn popper.
Now Stir Crazy corn popper maker is available in market. It ensures all kernels pop and it's capacity is 6 quarts in about 5 minutes. It is safe to use because it has Heat resistant handles and base. It has a plastic cover which we can use as serving bowl.