House stark, i'm cheering for Arya all the way plus Brann is doing well now too (though i don't like Brann as much).
I love how the pacing seems to pick up each season, i'm looking forward to season 5 and 6.
Arya is my favorite character as well. I was elated with the ending of season four. I cannot wait to see where they take this over the next couple of seasons. I'm guessing some kind of initiation and training with faceless men. She will be the instrument of retribution for the Stark name.
TBH until Daenarys settled her "throne" in Mereen in season four, I probably would have been backing her. That was kind of disappointing, but reasonable considering the goal of her reign.
I really dislike Daenarys she rubs me the wrong way, She is clueless on ruling and if it weren't for Jorah & Selmy she'd be completely lost. I think she should stay in Mereen because if she tried ruling Westeros they way shes ruling over the cities she's conquered, Houses would be rising against her left right and center. But that might just be the disdain for her thats talking, but Emilia Clarke is a wonderful actress and very charming during interviews and I couldnt see anyone else play the mother of dragons better.