No game deserves a perfect 10 because no game is perfect IMO. The second I see a reviewing magazine or website give a game a 10/10 they instantly lose all credibility to me. If you give a game a 10 that means there can be nothing better than that game... which is just plain untrue. Plus every game has problems, glitches, or something flawed with it.
But yeah not being able to see my characters body in first person mode is something I hate the most. It breaks all immersion when you look down and see nothing but a shadow. I don't need the guns or swords hovering infront of my "face" either unless I'm actually aiming it or something. 90% of the FPS games feel like I'm a floating pair of hands. With the camera (my eyes) located in my gut instead of my head where they belong.
I remember playing Far Cry 2 and being amazed at how I'm able to see my entire characters body. Then I step outside of the jeep and my legs and body vanished. Ugh. Mount&Blade is an indie dev game and they got the FPS camera right. Left4Dead gave us legs which was something. Too bad they took them out in Left4Dead 2 as well as turning the FoV into what feels like tunnel vision by zooming it in too much.
Seeing your legs wouldn't make it more immersive... If you think it feels like a floating camera, with legs it would look like a camera on legs...
Seeing your body wouldn't be that different either...
Uhh... no. Wrong on so many levels.