I swear by MAC.
It was used and highly recommended by my makeup artist.
Tried switching to other brand. But nothing can beat MAC.
It's about $40+ if I'm not wrong (tried looking at the price tag of
my own bottle, but dun have).
It gives a Matt finishing, but doesn't look thick (like wayang). It
only blends nicely and naturally on your face, to gives you the
natural good skin look. Whenever I go facial after work (with
makeup everything still on), my beautician will usually say "Hey
how come your skin so beautiful today!"
So go use MAC. Yes, it's more pricey than some of the brands. But
foundation usually can last for months even if you use daily. So
why not?
I have yet to use Bobbi Brown, which my friends sing praises of it.
First of all, not many places sell that. Secondly, I'm so happy
with MAC now, that I may not want to switch for some time.
I also have friends who sing praises of Shu Uemura. I never use
their liquid foundation. But I used their two way cake and UV
makeup base. NO good at all. Makes my skin appear dry and
unhealthy. Whenever I go to the beautician wearning this, she will
push me to buy more skin care products. 
"See,
your skin so bad. Your makeup doesn't even skin on your skin..."
she will say. 
