It's been FOREVER since I've been on the bee, but I'm pregnant again, so I've been stalking.

So, now that I'm back, I need some help! My insurance has three pump options to choose from - two Medela, one Ameda. I know that I want one of the Medela, but I'm not sure the difference between the two. The options are the pump in style advanced (I had this one with Sadie) or the freestyle. Which do you prefer?