Super Mario Galaxy is better than Sunshine in every way imaginable, no contest.
In terms of graphics, it presents a far more beautiful and artistic vision.
Music? One of the greatest soundtracks ever. The Delfino Plaza theme (my favorite from Sunshine) has nothing on Bouy Base Galaxy, for example.
On top of nailing the atmosphere, Galaxy absolutely perfected 3D platforming. Platforming segments are clumsy in Sunshine (there's little to compensate for the disorientation of a 3D environment), and, while Sunshine offers more exploration, it doesn't do exploration well (see Super Mario 64 for an example of how an adventure/platformer SHOULD play). The gameplay in Galaxy is flawless; in Sunshine, it's an irredeemable mishmash of things that are genuinely fun (rare), things that kind of work, and things that are absolutely atrocious.
I wouldn't hesitate to call Sunshine the worst main-series Mario game I've ever played. Galaxy, by contrast, is my favorite and, I think, the best.
Wow, I don't think I've ever disagreed more with anyone about anything (except for maybe Rush Limbaugh). I think that the only main series Mario game that could be considered bad is the American release of Super Mario Bros. 2...
If I had to pick it would probably be Sunshine. Galaxy was great and all, but I really don't feel any desire to return to it. Sunshine on the other hand always keeps me coming back.
I honestly say I can't agree with that because I loved MM and OoT a lot better than PH tooI don't see how this is even an argument. Saying Sunshine is better than Galaxy is like saying Phantom Hourglass is better than Ocarina of Time or Majora's Mask.
I, in all honesty, love Sunshine. Without it would Mario Galaxy even exist? It was the bridge between 64 and galaxy. And is also one of the hardest ones in my opinion. I can easily reach 90 in galaxy but have trouble reaching 60 in sunshine. Heck, if galaxy was made without sunshine galaxy would be missing levels too.
A few levels are based off of previous mario games, including sunshine. Of course galaxy was a natural successor. If it weren't one, this thread would be pointless.What exactly do you mean by Galaxy would be "missing levels"? Also, Super Mario Galaxy was clearly a more natural successor to Super Mario 64 than was Super Mario Sunshine. There was too little pure platforming in Sunshine.