I'm in Terminal 1 now and checked out the Plaza Premium lounge first. However they do not include alcohol so forget that no matter how nice they think it is. Plaza Premium is an odd and inconsistent company. I was in Macau recently and they had wine. KLIA only has beer.

Good news though. The Skyview lounge is now closed. It's been replaced with a brand new DNATA lounge near the food court. No view of planes but it's huge, the food choice is fine and there's wine, beer and spirits included.

A few months ago I tried the SATS Premier lounge. This is also quite new (or newly refurbished). The food choice was good and it includes alcohol.

My vote for PP members is either the SATS or the DNATA (whichever is nearest your gate) if you need a drink before flying.