The JL will sound MUCH better than the Kicker while the Kicker will be vastly louder so it really comes down to what you are looking for.

Most people know I hate Kicker. I even have an older L7 sitting in my garge right now. I know it worked fine when I got it back in 05, yet I have enver used it. It just sits in the enclosure I have. If you want it, make me an offer.