User blog comment:Percivalxx/Which series of Merlin did you find the best?/@comment-5890843-20130108231633

Such a hard decision! Series 1 was nice because Merlin, Arthur and Gwen were young and Gwen fancying Merlin without him realising was so sweet! Aaaah!

I think I'd choose Series 3 - for the same reasons as Merlinarthur - there were some classic Arthur/Merlin moments...