HI jtcb,
They all look pretty good to me. I haven't tried Yoyo yet, but would like to. As for the rest of the line-up, they sure do rotate girls often, so I can't give any recommendations (besides that new one I saw). As for comparison to Jackson's, I've never been there. But feel free to PM their location, if you don't mind.
I know one thing though, I think I get better bang for the buck compared to Pinky's place. I miss the bbbj I used to get there, but the Yoyo lineup is way better looking compared to my last couple of visits to Seoul.