Honestly, I feel that seven was a very weak game, and six not much better. Five had the best variety of mini-games, interesting boards, and was a fun all-around game. The mini-games in six were lackluster, and seven was near unplayable.
I got Mario party 6 and played it, oddly enough it was actually fun even though I wasn't expecting it to be fun. I wish that you could play as toad, bowser and Donkey Kong because Donkey Kong is my favorite Nintendo character of all time. Did anybody else play the sixth game? I remember some things being limited to day and night in party mode.