I too thought fight night looked amazing, but as was mentioned, it is only two people fighting; there is not any complex background going on. By all means it better look that good, and i'm sure it will look just as good on the 360.
Remember the halo2 first trailer, with MC jumping off the ship? That was all ingame on the xbox 1. Those graphics look better then most of what we have seen on the 360. Did halo 2 come close to looking that good? NO. Point is, there was no background stuff going on, so all the systems power was focused on MC, and a few doors and corridors. All MS had to do was show the halo2 trailer again at e3, and everyone would be amazed at how powerful the 360 is.
Also, with the ps3 not coming out in Japan for a year, i consider most of the specs they gave vaporware; a bench mark if anything. MS, on the other hand, is very close to launch, and i put more credit on the specs they have shown. Sony just wanted to take the steam out of the 360 by showing double specs on almost everything the 360 had to offer.
Seriously, the ps3 did not show anything that the 360 could not do with ease. Whether it was ingame or cgi.
I personally was more impressed with gears of war and elder scrolls 4 then anything else at e3.
