Just stumbled across this thread as I've never experienced the LGW BA lounges and will have an opportunity to do so next April. All I can say is, good grief! Exceptionally poor offering, especially compared with the VS CH - my kids will not be happy about the lack of hot food, not to mention being unable to have their nails done (yeah, very much first world problems).
I think maybe a quick breakfast at Cafe Rouge is called for, before heading in there for a glass or two of champagne...