I changed my vote to DS.
Mario Party DS feels like a mixture of the best mechanics from N64 Mario Party games and more modern Mario Party games. Each board has something different about it, but manages to keep the game familiar. The item shops, while heavily RNG dependent, pretty much always can give you a useful item. Even if the shop displeases you, you can place Hexes. Hexes are trap spaces that can do things like steal Coins or Stars when an opponent lands on them. You can also place ones that spawn a Star Block or Coin Block when you land on them. This is almost sort of a bet to see if you can land on the space first or one of your opponents. (Spoiler: the AI cheats) The minigames are great, with the touchscreen and microphone being used in great ways and not being shoved down your throat as a gimmick. (Half of them just use buttons) The Story Mode is probably one of the best in a Mario Party game. You have to go through every board, fighting the boss at the end. The bosses are varied, however some are stupidly easy. (One is just Simon) Completing the story actually unlocks a puzzle minigame that appears alongside several others from across the series.
I give this game a 3 out of 10