MAC Daydreaming is a very warm-toned, very dark coral with a satin finish. It is a limited edition eyeshadow that retails for $17.00 and contains 0.05 oz.
MAC Daydreaming Eyeshadow ($15.00 for 0.10 oz.) is described as a "frosted mid-tone coral [with a] veluxe pearl [finish]." It's a brightened, coral-red with a smooth, frosted sheen and warm, orange-y undertones. Guerlain Terra Azzurra #3 is lighter, less intense. Urban Decay Free Love is lighter and has a golden sheen. MAC Raving Mad is more subdued, less warm-toned. MAC Spicy Smoke is darker, redder, and it is most similar when blended out.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
M·A·C Eyeshadow is a highly pigmented powder formula that applies evenly and blends well. Suitable for use either wet or dry, it's available in a wide variety of textures and finishes.