Living Room vs My Bedroom

Hello,

My family has a 46" Samsung Armani HDTV ( http://www.samsung.com/africa_en/consumer/tv-audio-vide... )in our living room. I was wondering, should I station the PC I am gonna build in the living room or in my room? My room has a big computer desk but playing the games on the TV at times would be nice.

Thanks.

EDIT: Oh, almost forgot.. Here is my build, just in case:
http://secure.newegg.com/WishList/PublicWishDetail.aspx...
http://www.microcenter.com/single_product_results.phtml...

EDIT2: I should have mentioned my network configuration. There is another reason I want to know. My router is also downstairs since all of the computers (we have 2) are downstairs, so the router is also downstairs. If I put it downstairs, I can run a wire to my PC and have a more reliable connection. However, my dad sometimes sleeps on the couch, and he might not like me on in the middle of the night. In my room, I can play at night since my mom is a heavy sleeper. So there are advantages and disadvantages. With that being said, is it worth putting the computer downstairs for a wired connection but cranky dad or upstairs and use the wireless card I have in my build?

Also, I have two soft spots to rest while playing BF3 but with the couch I don't need a pillow to higher my head. However, with my bed, I can just grab a few pillows and be super comfy. I like playing with the most relaxation as I can possibly get.