Without get into a deep analisys and many many words…
If you want a local video solution, kind of local netflix but local inside of your network, with the videos/movies locally stored in your NAS, easy to configure and use , with good quality (of course depending of your videos quality and the quality of your monitor/TV) your choice is the integrated solution which is integrated into the Synology NAS which is VIDEO STATION
Now, if you want a more featured solution, your choice is PLEX
End.
sistronico 