The game does look pretty good...but best looking game ever? I don't even think it's the best looking cel-shaded game ever...take a look at Zone of Enders 2 for Playstation 2:
Those look much more impressive to me than the Zelda pics...and ZOE2 in video form? WOW
and Jason is right...some of those textures are...bleh:
Take a look at the tree and the grass...
Now I'm not saying this game isn't pretty, because I've seen some of those boss batles with the lighting and everything...they're sweet...but I best game ever is far from the truth IMO