Board Thread:Questions and Answers/@comment-39203290-20190425012251/@comment-26256072-20190426215644

Omnifarious can only change the user's shape, while Absolute Existence can change anything about the user including shape. Since Absolute Existence encompasses Omnifarious, it is the strictly better power of the two.

Among Absolute Existence, Perfection, and Omnilock, you're really comparing apples to oranges.