So Amida Buddha is the Supreme Buddha. What other differences are there between Amida Buddha and the other Buddhas?
It is taught that Amida Buddha is the teacher of all Buddhas. This means that all Buddhas in the universe are disciples of Amida. Śākyamuni Buddha, the most eminent one on earth, is also one of the Buddhas of the three worlds and ten directions. Therefore, the relationship between Amida Buddha and Śākyamuni Buddha is that of a master and disciple. Amida is the teacher, and Śākyamuni his student.