It's one of my fav ships too. Probably my most fav. I agree, they have a lot of similarities! The only reason Merlin works smaller is because he doesn't want to be caught, where Morgana is a bit more stroppy.

Oh Merlin. Sometimes he's the only thing between Camelot and full-on magical destruction. Just as well he has the power and is greater than most of the other sorcerers he comes across. I can imagine all these sorcerers breaking into the great hall, raining destruction down, and Merlin just quietly stands between them and Uther and Arther, and stops them. And Arthur goes from, "What are you doing, you idiot," to hiding behind his throne going WTF.