There are so pretty "meh..." games on both consoles but I have a feeling you are about to feel the wrath of fanboy flames.....

 /braces for impact.

@alex

Ofcourse, it looks better than viva pinata, and even resistance. Looks very good. Something tells me there will be a problem with the length... how will you fit all of that in one disc?

edit: Yea you faint over these graphics, but when you saw killzone 2 graphics..(Gears of war compares, it will flop etc..) see the trend?

On the subject of length: There was another mario thread where some people complained they thought it would be too long when it was announced there would be 40 levels and 120 stars.  Basically this means more than likely you will have 3 different ways to play through each level.

Yes ofcourse I know this, but the environments are much bigger in mario galaxy than in mario 64, but your right, length shouldnt be an issue it never has been in any mario game.