always surprises me when people don't put Boardwalk empire in among the first three mentioned, I think it's up there with the best of them. I actually rate it higher than the Wire and Breaking bad.
Loved the Wire but the last series got silly. Series 2 was superb.
Never watched an episode of GoT.
I did enjoy Boardwalk Empire but it had severe pacing issues for me. One episode would be full on classic style gangster madness and then the next three episodes were about Nucky having issues with paperwork regarding a new road opening and really detailed but ultimately boring politics.
Then the last season was completely rushed and moved the story on 5-10 years because HBO axed it and only ordered one more season. They killed off one of my favourite characters,
, off screen with pretty much no reference made. Hours and hours of meticulous dialogue and storyline reduced to nothing.
It had some amazing episodes, great characters and the attention to detail was meticulous but ultimately it disappointed me so that's my reasoning for leaving it off.