I am PRO-MAC all the way. Fluidlines is genius. Stays on all day and night. THe lipglosses have all ranges of colors. If you choose a loud bright color, it's your choice. But Mac has a broad color palette, of pales neutrals, pinks and I go for those pale subdued colors.
I also have to say that if one chooses to looks heavily made up then, that's your signature look. I like their lipstick and lipglosses. The colors come in a wide variety so it's up to you to want to either look like a clown, (which I have seen the over the top makeup), or choose the more subdued colors. It all depends on choice.
Go MAC!!