Which is best for my situation?

[hoopsdavis]

I'm looking at the qnap ts-451+ and the Asustor AS6404T. I'll be using the NAS to hold movies to stream throughout my home via LAN. I have no need to use the HDMI port, I already have media players (Nvidia Shield and Mibox Android TV boxes) so the Nas will just be a storage and access point. Files are also backed up in the cloud.
Which of the 2 Nas devices would you recommend based on your expert knowledge?

Thanks In Advance