The MEM sky club is one of my favorites. Not particularly crowded --- but there is a good amount of people in there for morning flights. (I was there today.) Self serve drinks. (Awesome.) Plenty of seating. And they made some improvements. Added an additional big screen TV in another room for sports, and they have, I think, some of the most comfortable chairs of any club: the big "mesh/woven" chairs with the adjustable side tables.