Join Date: Dec 2007
Location: LON EDI BCN SYD
Programs: OZ, RJ, A3, VA, VS, QF, LH, DL, UA, BA, former BD and others
Posts: 1,130
The SQ lounge is often overcrowded before SQ flights depart, and I have normally found the AC lounge to be quieter, with more seats offering a window view. The UA lounge is the best of the three at the B gates, definitely. The Plaza Premium Priority Pass lounge (for those that have access) at the A gates is not bad either, though not all drinks are free.