Originally Posted by Swanhunter
Good - VS Clubhouse LHR, CX Pier and Wing, Concorde Room (sometimes), MH lounges at KUL
Bad - Pretty much anything by AA or IB, the DEL contract lounges and the BOM overflow lounge - it's a smoke filled bar area open to everyone!
Overated - SIN Silverkris lounge (apart from the bar serving Krug in the F side

)
Agree wholeheartedly with all 3 of Swanny's choices above.
And if I may add another category:
Very very Good: LH HON F terminal in Frankfurt.
Oh, and add AZ lounges in MXP to the list of very bad too. The only options for breakfast food were tea-biscuits or peanuts!