Amazon CS or IngramSpark

To add to the ongoing debate about whether to source our books from Amazon CS or IngramSpark…

I have ordered two proof copies of my new book, Happiness Matters, one from Amazon’s CreateSpace and the other from IngramSpark, the ‘publishers self publisher’ which is widely used for extended distribution.

How do the paper copies compare?

Amazon CreateSpace

Quick delivery if you opt for the priority or express delivery but expensive for a proof copy, and no reason that I can see to downgrade ‘stan...