All my close friends I met in a GC church including my husband. Granted none of them are still involved in GC in any way and neither am I, but we did meet there and had lots of fun--most often playing Ultimate Frisbee for hours every Sunday afternoon!
Also had an interesting conversation with a single friend this weekend about meeting decent guys and she commented on how hard it is to find guys, now that she's not involved in GC, that aren't interested in only getting her to sleep with them. I'm assuming, though it wasn't specifically stated, that she hasn't met any single guys at her current church or that this includes the guys she meets there as well. Thought that was interesting. :-)
Those are my good memories, despite the yuckiness I witnessed that still makes me cringe when I think about it.
Speaking of guys. One of the elder-ish dudes at my Church I talked to after randomly running into him on the street one day. I got to tell him a lot of what went on when at GC*. I told him of some things and he gave some wise counsel/insight, [that I would say is really applicable to the Pelagian-ish "Church Growth" "Churches" teaching "ways to close the back door of your Church", see "Purpose Driven Church" for the popular version], "it's dangerous when such 'churches' strive to give direction to young men who're unregenerate", (that's paraphrasing), and he also mentioned that it's tragic or something along those lines.
Another thing of guys: I know some who had girlfriends that they broke-up with due to pressure from those females to sleep with them. Very interesting. These aren't believers, either, but they're consciences don't seem hardened such that they still listen to them as far as I can tell.