For the average flyer, I would say just go to the one closest to your departure gate (the satellite terminal).
For someone interested in visting lounges, like you and I, I would suggest going to both lounges. You will have plenty of time to look around and enjoy a drink in both lounges.
Have they both been updated to the new style? I haven't been there in a while, when I last was there the satellite terminal was an older decor.