Davos quickly grew into one of my favourites.

I'd genuinely just avoid anything to do with the series until you've finished ADWD since they really get ahead of themselves on the show. And by the looks of it, Season 5 is going to overtake ADWD and whatever comes after that will just carry on that trend.

If you want a book experience first, you're basically screwed now which is incredibly annoying. I'd at least recommend finishing ASOS before anything else to do with the show since it's such a rewarding read and the spoilers would ruin it.