I have stayed at both the Intercontinental and the Hyatt, both with lounge access. I prefer the IC, in part because of its location. However, the Hyatt is a very pleasant hotel with different benefits of its location. If you choose the Hyatt, you can use additional points that give lounge access. I've just checked and it is 27K points per night instead of 20K. I'm unaware of any way to use additional points at the IC for the lounge use.