1 Staff friendliness
2 Comfortable seating
3 Quite
4 Minimum snacks and beverages (coffee, water, snacks such as pretzels, nuts etc)
5 Monitors for departing flights
6 Electric sockets
7 WiFi, preferably free
8 Newspapers and magazines
9 Airside
10 Separate kids area
Some of the top 10 which I think should be the minimum.