Well, to be honest, Black Sails for exemple was easily on par with GoT, in terms of sheer quality, production values, stellar acting, compelling story, etc it also had its fair share of boobs and violence… Why didn’t it become a massive hit like GoT? Who the hell knows… bad luck, probably.
That’s my point, there’s plenty of incredible quality on TV these days, yet there’s only one GoT… kinda sucks, but honestly GoT just got lucky, imo. It could’ve been any of those other series.
Oh and HBO should jump either on Dune or StarCraft =P