This is from order of least to best:

1. Lancelot and Gwen
2. Morgana and Gwen
3. Arthur and Morgana
4. Merlin and Gwen
5. Arthur and Gwen
6. Merlin and Freya
7. Merlin and Morgana
8........... MERLIN AND ARTHUR!!!!!!!!

I guess number 8 was kind of easy... *embarrassed eyes*

I don't know why, I just don't like Gwen!

I really can't stand this pairing.

Arthur and Morgana in the shows had nothing
Merlin and Arthur come on people, they are friends, please stop to beleive that they are gays ( I respect the gays but seriously this a show were the guys are straight, if they were gay fine but they are not)
Lancelot and gwen, sorry but in this show lancelot and gwen had nothing to do

They had some chemistry in the first season but they are brother and sister and in season 2 and 3 they were nothing more rather became enemies...
I don't like Gwen/Lancelot I ship Arthur/Gwen at first of all.

Arthur & Gwen are my OTP so they're quite obviously my favorite pairing of Merlin. Arthur & Merlin are my guilty pleasure, but I love their friendship most of all. This idea that they are Brothers of Destiny. Mergana, FreMer, and Merlin/Nimueh interest me. I think I like Mergana the most at this point, out of those three. Merwen are cute. Morgana/Gwen are the most AU pairing here and so I can't say I have any opinion on them. I like Arthur & Morgana- again a guilty pleasure of mine.
But my feelings for Lance/Gwen even make me frightened *shudders* I thought they were cute in season 1, but after that...

They are related... O_O I really don't understand this parring! ;O

Disturbingly repulsive and never had chemistry

I HATE IT, I'm Mergana shipper.

Arthur and Morgana

Armor
Mergana
Merthur

I hate those 3

YUCK.

It's not the incest, it's morgana can't stand Arthur and he has done nothing to her. Armor shippers can deny all they want, but Morgana loaths him completely.

and Morgana with Gwen!