I had hazy memories of all three, so I just sat down and watched Road Warrior on Amazon this morning.
You can tell it's low-budget, and elements of it are definitely hokey and dated, but I found myself drawn in.
Some of the supporting acting is pretty bad (the guy who plays Wez), but Gibson is effortlessly cool and charismatic without saying anything for long stretches at a time.
I was struck by how thick the S&M undertones are. The rape scene, the leather bondage and mask wear everyone has on, Lord Humongous having Wez on a chain like a dog, Wez and the androgynous blond boy pretty obviously being a gay couple.
The climactic car chase was cool, of course, but I was mildly disappointed, having heard how it's so epic. I dunno, a lot of it seemed like everyone was driving too orderly and not like they were actually trying to kill each other. Maybe the Fury Road trailers have me spoiled.
I liked catching little Easter eggs in Fury Road even from the trailers, like the music box, how much the big rig looks like Furiosa's, the Interceptor crash, the way the prisoners are strapped to the cars the way Max is in FW, etc.