Interesting question considering I have not been the biggest fan of MAC e/a but recently have actually got into a few. I would say Vex and Shroom. Simply bc their finish is so unique to me and they really do make any of your e/s (MAC or others) work!
Patina is lovely. I like woodwinked too. Club needs some work to bring out its unique qualities. Vex, shroom, soft brown and wedge have the biggest dips in them. I think I may be the only person who doesn't love satin taupe. I want to but I look like a corpse with it. Def not universally flattering as some claim!