I gotta give it to the Galaxy series personally; they are two of the finest video games ever crafted in my opinion with their endlessly creative stage design, perfect controls, and sublime soundtracks.
Next comes the exploratory ones; 64 and Odyssey are great, but Sunshine's mediocrity drags the average down.
3D World/Land were good games, but didn't feel as imaginative or epic as the rest. (Sans Sunshine)