Galaxy was amazing, but I wouldn't quite say "Best".
The word 'best' in games doesn't "Exist" technically...it exists in "Preference"
For example.. there are kids around here whose first Zelda game was OOT, and to this day they go "OoT is the BEST! All other sequel Zelda's SUCK LOL LAUGH OUT LOUD! " ...And yet here I am, saying that Majora's Mask was much better than Ocarina of Time, though not to say OoT was a bad game (aside from the shitty designer who made the Water Temple.)
As amazing as Galaxy is, i can't wait for the next platform game. (Just not a Galaxy 2)