I really like Jen. I love how truthful she is. I didn't appreciate her individuality when I watched this when younger. You really can tell she's experienced a lot for her age and although my experiences were more similar to Joey's, as an adult I really feel like I prefer Jen.
Also, I know you're not up to this yet, but Michael Pitt is so damn adorable in season 3 that I want to punch myself in the face LOL