User blog comment:General MGD 109/Who's most powerful?/@comment-5519601-20121028104056

I think Merlin's more powerful. But we probably don't know how much because he isn't really able to extend his powers because he has to do it all in secrecy.

If Merlin was able to do magic freely, then we'd see a much more powerful Merlin.

Morgana's also very powerful but we haven't really seen a full extent of her powers as well. It's probably because the only spells that she does is to make people fly into the air.

So.....yeah