Hm... I'm not sure graphics matter for Minecraft. It's always 16x16 pixels for graphics, no matter the platform :)
Actually on the contrary, you're forgetting that there are higher resolution texture packs with a fix from Optifine or MC Patcher to enable it. Though it's a mod, and not an official fix for the computer version, it's still a higher resolution.
And I don't like the vastly reduced size of the world. PC reigns supreme because the XBox can't handle the infinite generation for some disputed reason. Also the fact that it currently lags behind the PC in game version.