Quoted from AFM95:I think you're right with your thought process. All of these games have unique features that make them great for different reasons.
I would choose AFM, because the theme, simple layout, and bash toy. It appeals to most of my friends and family; whom are all novices in pinball. They don't care if a game is deep - they just love simplicity and fun.
Funny, while I am a fan of all of them, out of MM, MB, and AFM...I think AFM is the worst of the three. The layouts/rules are similar, but MM and MB have better toys, and the "bouncing" ship and aliens of AFM are kind of annoying (not to mention the seizure-inducing spaceship flashing).