I have combination, acne-prone skin and I adore a couple of MAC foundations! You have to try out foundations to see what your skin likes -- while some people complain about MAC's and acne, they are all nonacnegenic and you'll find that someone has a problem with any foundation out there.
The PRO Full Coverage is really thick and creamy, and really isn't designed for daily wear. It's mask-like and migrates easily. I try to avoid putting it on anyone... and limit it to photo shoots where I need to create perfect flawless skin and don't care that it's like greasepaint! It may or may not cause additional breakouts, but it isn't a very natural or comfortable product to wear.
For quick, everyday use, I like a powerful concealer with Studio Fix on top. I love Lancome Effacernes for concealing everything -- it's a water-resistant liquid that covers amazingly and lasts all day. Then I buff my Studio Fix on top with a dense round brush (like the 109 or a kabuki brush). It's quick and I love the coverage.
My other pick is Studio Finish Matte. It's a liquid with a nice matte finish that lasts well. Again, with a good concealer it gives me flawless coverage.
