As far as I understand, you would be able to access both the Aspire (IB, PP) and the No1 (QR, PP). Both lounges can get very crowded at times (the Aspire is used by AF/KL/LH etc.), food-wise they are both similar (even though the former has somewhat improved recently, with more variety compared to the days of soup, scones & bacon butties first in the morning - and that was it basically), the No1 has a few items to choose from the menu whereas the open buffet is very limited (nuts, cakes and possibly soup). I would probably go for the No1, which definitely feels more spacious compared to the other one together with the choices from the food menu making it a better choice on the whole.
G