I have a favorite one listed in my favorites. It's called Key to My Desire and it's really good.
But you're right, Kate, the majority of them suck and they all feel like ganging up on a bunch of fans. I have a feeling the fanfic site is 50/50 Jack/Liz, so we will get praise from them, but flames from the rest.
Ch. 5 is now shown to be up.
http://www.fanfiction.net/s/3141143/1/
There is the link to the story. I guess ch. 5 isn't up yet. So sorry. I'll try to upload 6 as soon as I can.