Thunderdome is the odd one out for sure, and it's probably my least favourite of the four but I still enjoyed it. Definitely a bit silly at times, but I honestly found that endearing.

Thunderdome is difficult for me to rank. The scenes in the city with the thunderdome is some of the best in the series. But later scenes are some of the worst in the series.
I like it for the good parts, it was not time wasted to watch it.

Thunderdome has great characters, something that isn't generally strength of the series.
The way I see it, 3 has story/dialogue, FR has action, 2 has both and first valiantly tried to have both.

I was a bit underwhelmed with Thunderdome back in 80s. Later when I rewatched it, I actually really liked it for its grey morality characters and worldbuilding. Unfortunately, chase felt like a weak rehash of Road Warrior.

At the end of the day, Mad Max fans got Fury Road and Furiosa, I guess they should just be happy with that. This was never a huge franchise to begin with and it's rooted in the completely outdated "chase movie" sub-genre niche of the 1970s/1980s. It's not exactly something that screams "big box office". I still think Furiosa was kind of pointless as a movie as we know enough about Furiosa from Fury Road that it didn't justify a 2 1/2 hour movie on its own, but whatever I guess. It's a well made film, I'll give it that, I just don't see the point in investing so much into this particular story. 

Watched the movieclips of the film on youtube. Great film but would have not gone to see it in theatres.m