Google Chromecast or nexus player?

Looking to get one or the other but unsure if i want to pay the difference. What I would be using it for would be too stream movies from Google play, vudu, netflix ,hulu and movies I have obtained that are stored on my nexus 6 Watch youtube and stream apps. I would want to connect it directly to my surround sound system HDMI port. So it the nexus played worth the extra .

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