Well, we are here to settle it. So let’s have the list.

Oh yes, Winnie. The classic. Winnie may have been the best because she hooked up with Kevin Arnold, which gave us all hope. Since Kevin was the kind of guy that narrated his own life, we felt like if he could hit that, we could hit that.
Also from the Kevin Arnold approach, Corey Matthews had NO business being with the lovely Topanga. The show also perfectly framed her development from weird girl to normal girl to hot girl.
Looking back, she may not have been the end all be all of girls that we remember. But at the time, there wasn’t a guy in 3rd grade that didn’t swoon over the older DJ. She doesn’t have the “dating a dork” syndrome like Winnie and Topanga, but Steve was a pretty cool guy. He was the voice of Aladdin, which was the only Disney movie boys were allowed to like. In fact, Full House may have been responsible for our first regular crush and our first man-crush. (Our current man-crush is Mike Tomlin. Not sure when that will end.)
Impossible to find a good picture from this show.
She may have been a tomboy at first, but no writer could keep her down. We could all see the awesomeness underneath, even if she went by “Al”.
There was much consideration for Alex Mack. Since Google Images is already up, we might as well include a picture.
We have no idea what the hell is going on here.