If you ask me, a game has to be tied or close when it comes to fun, story (if applicable), and music (if applicable) in order for me to even care about a game.
You could throw a text based terminal game using ASCII art at me and I'd love it just as much as a game such as Hitman Blood Money so long as it's fun enough.
You'd think that everyone thinks that way, but the overwhelming majority of my "normie" friends won't touch a game if it doesn't have good photorealistic graphics and animations.
Minecraft is a strange one for me, because it has never caused me that reaction of "this game looks bad/ugly". I think something like Infiniminer looks ugly, Unturned looks ugly, most Minecraft clones look ugly, a lot of more "realistic" games look ugly, but somehow not Minecraft. I can't quite put my finger on why I see it as different somehow.