See also
this thread from 6 weeks ago (just the first 5 posts).
I see the OP is in London, but as a non Londoner I can't see any real benefit joining LCC over one of the others. For insurance they all look pretty much the same. I can't complain about the help I've received!
I'm a member of British Cycling, although that's because I'm more interested in the racing aspect of cycling. Bronze membership is a waste of time, but Silver and Everyday are on a par with the others mentioned.
My personal opinion is that all the organisations are as bad as each other. A united front for campaigning and lobbying would be so much better when everybody is trying to keep us off the roads. In racing terms BC is obviously more responsible as the authoritative body, yet has managed to lose lots of events from the calendar because it can't fight our corner against aggrieved locals and a plod who can't spare the resources. Time trialling is under threat in some areas and courses as well which is worrying.
I've mentioned to dellzeqq before that my personal experience of CTC
locally is dire as they aren't interested in people who don't remember the days of BLRC v NCU....I agree that there is a natural progression from a youthful roadman to someone who wants to take things a little more sedately, but as the most visible organisation I believe that CTC has a responsibility to encourage younger cyclists.
This last point is probably applicable to virtually any sporting club in the country - the older guard are being left to run things as the younger generations don't want to or have the time to commit to the organisational side of sport. Injection of youth (and uptake of technology to some extent) could help.
That said, FNRttC is legendary!