I love all the matte pigments from MAC and MUFE...but I guess it depends on your taste in colors...
GREEN: MAC Landscape Green is a great rich green; MAC True Chartreuse is a sour lemon kinda green (think Bitter e/s); MUFE Pure Pigment in Green is similar to the MAC Landscape Green
BLUE: MAC Clear Sky Blue is a very light sky blue, lighter than Mutiny, it's almost like Aqua e/s...a must have for a collector; MAC Blue Cyan is a beautiful mid-level blue, almost like Electric Eel e/s; MAC Marine Ultra is a deeper primary blue, it's closer to a navy but not that dark, almost a matte Freshwater e/s or Submarine e/s; MUFE Pure Pigment in Blue is also like Marine Ultra.
RED: MAC Basic Red is just that...basic red; Ditto for MUFE Pure Pigment in Red.
PURPLE: MAC Fench Violet is a beautiful light almost lilac color; MUFE Pure Pigment in purple is like the well known #92 in pigment form; MAC has some more darker matte purple/deep burgandy type pigments as well but I don't like darker colors myself...so...alas...
YELLOW: MAC Primary Yellow is again a primary yellow; Same for MUFE Pure Pigment in yellow.
PINK: MAC Cool Pink is a gorgeous light blue based pink (lovely); MUFE Pure Pigment in Pink is pigment version of #72, bright neon pink;
BLACK: Hello MAC Black Black Pigment...black as black; Same for MUFE Pure Pigment in Black.
CORAL: MAC Dusty Coral is a beauty!
BROWN: Only one, MAC Deep Brown.
WHITE/IVORY: MAC Pure White is Pure White and I love MAC Polished Ivory which is a nice creamy ivory color.
NEON: I love them all, MAC Neo-Orange, Electric Red, Green Space, Rock-it-Yellow, Magenta Madness, Full Force Violet, bright in your face colors!