I wouldn't say some of the best, but It's very impressive considering the 7 year old hardware It's running on. --- Remember this, if you see someone doing something but at the same time watching you... then he is a cop.
Production value of this game is top notch for sure.
Other games that I put in the same league in terms of polish are Uncharted, Gears of war, Grand theft auto and Battlefield 3 etc. I know BF3 had its bugs and kinks when it came out, but still, the entire game still has that aura of well-madeness.
And dont go talking bad about my BF3 now.
The other thing I will say about this game is that I rin my 360 on the same monitor as my PC. When I switch between PC and console, I sometimes have to readjust to the difference in the sense that generally things look a litter rougher, jaggies etc. In Halo 4 I have almost no such problems. Game looks great.
--- I5 760 | GTX 560 Ti | 8GB RAM | 1TB 7200 rpm | Corsair VX 550w | CM Gladiator | Samsung S24A350H | Corsair K90 & M90 | Asus Xonar DGX | Sennheiser HD 518