Played By: Mario Lopez and Elizabeth Berkley

They say opposites attract, and we don't think any couple was as polar opposite as Slater and Jessie. It wasn't that the outspoken brainiac feminist and the meathead jock didn't make any sense, it's that they didn't have enough chemistry to make sense. Not to mention, Slater spent most of the earlier seasons fighting Zack for Kelly's attention. We think we can all agree with Jessie when she calls Slater a "sexist pig" and scolds him for calling her "Mama."