Wirelessly posted (BlackBerry8310/4.5.0.180 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/120)
So the pros for SQ J and TG J lounges at BKK are:
SQ: has coconut juice in fruit and ice-cream, TG doesn't.
TG: has shower, SQ doesn't even have toilets.
Anything else to consider?