MAC blushes are probably my all time favorite powder blushes. I currently own 21 of them and love each and every one equally. The Sheertone & Sheertone Shimmer are probably by far the best in my book: they go on smooth, have great color payoff, no patchiness, etc. etc.
The Matte blushes are my least favorite: I find on my dryer skin that they apply extremely patchy and fade very quick.