Avon Jade: I liked the formula of this one a lot. The first coat is a bit sheer, but it builds well. I like the color the best of these four as well because while it's cool enough to give a bit of contrast against my skin, it's got a slight touch of warmth. Also, it's neither too light nor too dark. Plus, It was incredibly cheap. Check out the full review here.
Charlotte Russe Jade: This one is supposed to be a duple of Chanel Jade, and with it's miniscule minty shimmer, it's gorgeous enough to deserve that honor. It's a bit sheer, but if you take your time you can make it work. Check out other photos of this shade here. It's similar to the Avon, but more sheer, and obviously with that shimmer.
Essie Mint Candy Apple: I've shown this one to you many times, and I still like it. I like the white base and the wash of blue-ish mint injected into that stark base. Again, it's a bit sheer upon the first coat, but builds up beautifully.
China Glaze Re-Fresh Mint: The lightest of the four, it's most similar to MCA, but with less blue. This is the closest you'll come to finding a pastel true mint. It's a little streaky, like the rest, on the first coat, but layers well. Lovely color. All four are so pretty in their own way.