Board Thread:General Discussion/@comment-4519633-20141022032431/@comment-28211584-20160415190157

if we consider the sorcerers in its most powerful version (already shown in the series), and not consider gods:

1-Merlin

2- the dark one / Peter Pan (remember that e magic is not his, is neverland)

3-the wicked wicth of the east

4-the Evil Queen

5 Queen of hearts

6 Maleficent

7-Amara

8 Snow Queen

8 jafar (without staff)

9 Emma Swan

10-Anastasia

Bonus: For the apprendice who i can not define it, because your magic is not offensive, as much as he can send peoplef or our world and use magic in it (which in my opinion, not one thing can can do it, is a secret that only he and probably the merlin know, "using magic worlds without magic"), he was easily was defeated by Zoso.