Maybe a long shot...
Hi Andrew!
I have not yet seen a direct comparison, and it is hard for me to make a fair determination between the two based on the reviews I've seen so far.
Take heart; more information should be coming soon as more of these are seen and used in the field and user-reports and reviews begin to trickle in. If any of us spot anything useful along these lines, it'll appear here.
Best,
Dan.