I feel LHR figures have reduced simply due to lower capacity offered on this route. Many services in 2007 were operated via 757 a/c, and I remember the odd 767 substituted occasionally- LCY is a different model with premium fares for business customers heading to the "City"
CDG in my opinion is also restricted by AF capacity offered on this route, Fares for point to point are high, if leisure customers were to consider, for example w/e breaks to Paris or short breaks to Disneyland.
EZY I'm sure could add extra capacity without effecting AF connecting business model too much - Same may apply to AMS vs. KLM., although wouldn't want to see legacy airlines diminished.
SAS (Braathens) to Oslo, Stavanger and Bergen were also daily 737 routes in the day - not sure of the volumes. too