1. Paper Mario: The Thousand-Year door
Pros: Overarching story, individual chapter stories and settings, characters, dialogue, gameplay evolution
Cons: A bit of stale backtracking at times (though maybe not as much as people let on)
2. Paper Mario
Pros: Gameplay
Cons: None that really come to mind, mostly everything is done well but done as well or better in PMTTYD
3. Super Paper Mario
Pros: Overarching story, some of the characters, some individual story/setting/gameplay concepts
Cons: The gameplay/individual story/setting concepts are often executed without inspiration and are at times gimmicky, the sidescroller format is not as good as the traditional RPG format, the music is less memorable
4. Paper Mario: Sticker Star
Pros: Some gameplay concepts
Cons: Some crucial gameplay elements are sacrificed at the expense of the new concepts which fail to compensate for incentive, lack of story, dull settings and chapters, lack of characters, the "level" format of the areas gives too linear of a feeling, forgettable music