1: MP1
2: MP3
3: MP2
I haven't played MP4, so I cannot rate it.
Anyways, I LOVE the "spin the joystick" games in Mario Party 1. I can destroy anyone at them (My Mecha Shy Guy record is 61 spins.) and if you do it MY way, you don't get a sore thumb, merely a blister on your palm. MP1 has the best mini-games for the most part... and the concept of being able to steal coins from other players in the mini-games should have been continued to the rest of the series. Plus, Mario Party 1 has the best maps to play on. Yoshi's Tropical Island is a good board to play on, as is DK's board (can't remember the name). Mario Party 3 has the most options, and the Duel Mode is nice, but the mini-games can't compete with MP1's. Plus, they took out Mini-Game Stadium, and the buy mini-games with coins features... which I didn't like. MP2 has the worst mini-games in my mind, and I don't like the maps, either (except for Bowser Land). The Mini-Game Coaster was a good challenge, though (Although it is frustrating when you lose on Hot Rope Jump and Sneak 'N' Snore for the 8 billionth time).
And those are my reasons.
Stupid Quotes: (5th edition)
"I`d like to buy a vowel. An N?"
~Contestant on "Wheel of Fortune"