Breaking Bad's appeal is pretty much reliant on it being a very original story. But with the deafining hype it was pretty hard to preserve the originality with every ugly white guy with a shit beard on your facebook screaming 'science bitch' in a cringe unironic tribute video before you got a chance to see it. 

I would say that its filler is almost as bad as the walking dead but to make that comparison the walking dead would have to be something that has something other than just pure filler. That show is moronic, dull, poorly acted, and occasionally surreal in the most non-entertaining way possible.

I do think AOT has fans, I just think they make up a small percent of the people who were ejaculating all over the internet about it when it came out. SOA had hype but the fanbase has largely stuck with it even inbwetween the shows/seasons whatever.

Should also mention gundam has a pretty loyal if not squabbling fanbase.