I have to admit that you did a great analysis and that it is hard to pick a clear winner.
Apple is the favorite because the are the closest to the trillion but I do think that they will suffer from the declining interest in the iphone (too expensive). Also when an economic set back will happen they will suffer more than Amazon will. Amazon has a much broader offering the Apple, you is more focused on the niche tech markets, which do great when it goes good with the economy but will crash hard when there is an economic set back. You just can't justify it to yourself to spend in those days to purchase a $1K phone. At least I can't.
Because I like betting on the dark horse, I will go for Amazon!