You're right that Game of Thrones is far superior, but they are different genres and Game of Thrones has much more characters and the story line that ties in all the characters is amazing.
I loved Breaking Bad, it was different, a new angle, an anti-hero that you couldn't help siding with. Maybe the show just isn't for you? I try not to compare different shows to each other, I've found several other shows that are far better than Breaking Bad, but that doesn't make Breaking Bad a bad show.