Well, gameplay is everything, MP has amazing art and music but without the basic gameplay to glue everything together it just wouldn't be a good game, like america mcgee's Alice (I did enjoy that game a lot anyway).
Honestly, its not that I want a Nintendo without Miyamoto because he's amazing, but lately I have enjoyed a lot more the games that he just supervised (MP 1 and 2, MM, tWW) than the ones that required him to be more involved (Nintendogs, TP).