That right there says its better. Besides do you even need to ask? So far the games they've made have always put high end systems to use. I heard Morrowind practically butchered high end systems when it came out and Oblivion certainly didn't hold anything back either. If you google comparison screenshots you'll see there is a very real difference between PC and consoles in terms of graphics for their previous games. Xbox 360 is the worst since it has the oldest hardware, then PS3 then PC up front. Not to mention PC graphics will only get better because there's always someone who releases graphic packs.
That is like saying "Hey at least they are letting you use a keyboard with your PC version."
Of course the PC version will have higher resolution AA and AF. Those things are what the drivers allow us to do. I can run games from the 90's at high resolution AA and AF. That is not better, that is just a necessity of it being on PC. Not having ANY extra fidelity aside from Resolution AA and AF is way SUB par for the industry. This is a AAA studio and a AAA game.
Games like, Mirrors Edge, Battlefield, Left 4 Dead, Far Cry 2, Crysis 2, Grand Theft Auto, Dead Space, Alien vs Predator, Metro 2033, Bioshock, Half-Life, Portal, Torchlight, Red Faction, Unreal Tournament, etc etc all have made the effort to add in PC features to take advantage of hardware that is 6 years newer than the consoles. There is absolutely no excuse for Bethesda not to throw PC users a bone.
Morrowind yes, Morrowind supported features that the Xbox version did not(Tesselation, HD Textures, More Polys, Better lighting, draw distance, etc.), because PC was the lead platform for development.
Oblivion was around launch when PC's and consoles were closer to being equal. That was years ago.