This game is probably the best of all of the Paper Mario games. (Don't know about Paper Mario 3DS since it's not out.)

User Rating: 9 | Paper Mario: The Thousand-Year Door GC
Well, this is the best Paper Mario. I loved the plot of it. I'm happy that there was a different foe instead of Bowser. (Even though Bowser does appear in the game.) I also loved the graphics. They were really cool. I like how the game didn't take place in Toad Town or even the Mushroom Kingdom, either. I do suggest playing this game, but only for the people who have played Paper Mario 64 first, though. If you just go on and play Paper Mario: The Thousand Year Door and you've never even played a Paper Mario game before, you're going to be pretty lost. Not only that, but the game is way harder than Paper Mario 64. Some of the free stuff in Paper Mario 64 aren't in this one. Like, you know those Heart Blocks? Well, you now have to pay to use one. Also, you know the Inn's? You need to pay for those, too. (You don't need to pay if you have an Inn Coupon, though.) Other than those slight changes, the game is really fun. So, yeah, I do suggest people who have played Paper Mario 64 to play this game.