I tend to build decks as 30 characters, 15 resource and 15 other. It seems that again the 15 other space is crowded again...
Required cards seem:
Distinct Mastery x3
To Be A Kraken x3
White Raven x3 (I gave up on summer... it seems winter IS the only competitve build for greyjoy).
Risen from the Sea (Or Iron Mines) x3
Longship McDraw x3
This of course makes for a bland and boring deck... now you don't have winter armada, milk of the poppy, scouting vessel (which seems to be needed) in the deck. This of course has given a raise to the question, how much is distinct mastery needed vs. scouting vessel. Or should one instead replace characters like euron, balon, asha, theon, and dagmer with intimidate characters, this would provide a passive un counterable ability to bypass most weaker characters.
As far as what is popular now I'm out of the loop.