Road Warrior is definitely my favorite. It has a fun, self-contained story, Max is finally the wasteland badass we want him to be, his car is just bitchin', and the whole thing is an excellent wasteland story. I think Fury Road is a lot better in a lot of little ways - I actually like Tom Hardy as Max, he's a lot more expressive - but Road Warrior will always be the best one.
>Mad Max game
It's excellent because it's very aware it's a Mad Max game. You're not there to save the world, you're there because some fags chopped your car up and you need a new one. You build it yourself with the help of a weird mutant guy and cruise around, stealing scrap, blowing up cars and beating guys up. Shitty melee combat that is way too Batman to be excellent, but great driving and if you like cars, they definitely had some car nerds on the team. What I like the best is that Max is Max. He's kinda a dick, and spends the majority of the game bitching that his new car has a pathetic little V6 engine instead of the mighty V8 he wants. It was great and I'd play it again for sure.