D-C-A-B is how I rank them. Skylink makes it possible to choose a club if you have 2 hours. Also, you have more restaurant choices in D, so sometimes I eat in D, go get coffee and log-on at the AC, then saunter to my gate.
Whatever you do, enjoy! Travel isn't the easiest these days. Also, there's a Starbucks at most of the Skylink entries. I find this to be convenient as well.