This is going to be tough, because there are so many of you and your interests are so varied. I'll give it a shot, though - if it turns out that I'm in error, please correct me and I'll try a different choice.
Name a CD you own that no-one else on your friends list does Given how relatively few of you are in NZ, I'm going to guess at XPRESSWAY PILE=UP A Compilation of NZ Music. It's pretty good, especially the Plagal Grind and the Shayne Carter.
Name a book you own that no-one else on your friends list does John Oxenford's translation of Eckermann's Conversations of Goethe.
Name a movie you own on DVD/VHS/whatever that no-one else on your friends list does Not possible, since I don't own any.
Name a place that you have visited that no-one else on your friends list has I'd be very surprised if anyone else has walked up the underground tunnel from St Helen's church, York, which runs parallel to Stonegate. There's no chance of anyone doing so now, alas, since it was blocked up many years ago.