mmm i havent tried a lot of their lipsticks, i own hue, politely pink and sandy b, which is my fav. but i am in love with their lipglasses. the best one for me is nymphette, but i just got VGVl and it is a close 2nd!
I would probably have to say Mac Hug Me, keep in mind I only have 5 Mac lipsticks. When I first got it I thought it sucked, completely. Nothing special. But when I started using it with a clear Nyx gloss and without it it looks so natural and gives a beautiful color. I also like Faux, its pink, gives my lips pouty full lips appearance. But right now I am using Hug Me.
Mine at the moment is Orchidstrate. I love the feel of it on my lips since it's an amplified creme and the color is the perfect neutral for me...not too dark but not too light.
MAC has discontinued every shade I ever liked. I had to go back to the drugstore brands (L'Oreal, etc) I like matte berry shades. Now I just buy the occasional MAC lip gloss. My advice? Don't get too hooked on lip shades with them..LOL