I have had to edit this question because it was too broad (sorry didn't realise that was not allowed...), so, lets go with:
Is AES256 the most secure encryption algorithm available at the moment? If not what would be a more suitable alternative?
It would be great to see a comparison table for various encryption algorithms if one exists. If the benefits are comparable.
Not sure why I'm being down voted so bad, thought I asked a reasonable question? 🙁