I don't know about whether I care the game is better for any platform, but I think it would be a dream come true, for me, if Bethesda announced that they were painstakingly optimizing the game to run as good as possible and look as good as possible on all platforms... just so we're all happy.
Oh, but that's where you're wrong. The console owners would complain that the PC version looks better while the PS3 owners would arrogantly brag about how their version is better than the 360 owners.. until the 360 owners get DLC access before the PS3 owners. Also, don't expect the 2011 release to stay if that were to happen.
It's a lot easier to make it the same on across all platforms. The PS3 and 360 owners get a beautiful game on their consoles without having to invest in an amazing PC and the PC owners get the ability to mod the [censored] out of their game. Anyone who isn't happy with that can go sob in a corner somewhere.
Oh, and I say amazing PC because no one would purchase a PC just to play a single game. If you're buying a PC to game with, you're going to want something that can handle even the most graphic intense games on the market (as well as those coming out within the next few years). Now, I don't know about you, but that's pretty hard for most people to do. I spent $1,500 on my PC and it lags when I play Dekaron (which is really, really old) on the highest settings -- not even going to bother with games like Crysis 2.