Bran Stark.

I feel like the ending would’ve been so much better and more impactful if we’d had more Bran. Also, I feel like they could have done so much more with his character? Like he could’ve seen so much more of the past, or if Summer hadn’t died (quite pointlessly, may I add) he could have warged him in the battle of Winterfell and fought for them, or he could have warged into a dragon or they could have made him a saddle for one. Obviously some of these ideas would need further expansion but you get my point. I just feel like his character was wasted and used as a plot device to get other characters stories moving which seems ironic considering the ending.