No. I'm sure third-person will look great but I find first-person play more immersive. It makes it feel like I'm actually in the world looking out through the protagonist's eyes.
Don't be fooled by the hype. The Creation Engine is a modified Gamebryo.
Not the point. The gamebryo engine was not specifically made for Oblivion/FO3/NV. That's why those games were not extremely polished. This may be a modified gamebryo, but it is modified specifically to fit the needs of Skyrim. So it will most definitely live up to the hype.
One of the major selling points of TES games is the first person perspective in a fantasy game, you don't see that all too often. So I always play in first person. I like walking around in third person to get a better look at the area though.