First choice #74, second choice #24. Funnily enough, my first choice was #24 when I first started karting but it was taken so I had #74 instead, now it's my first choice.
An even more stupid question - why not use your LFS UID? It's actually unique and easily linkable to you...
Simply goto your profile and the number in the URL is your UID. I believe it ties directly into the LFS database, so it's also a good measure of knowing who are the members who registered earlier. Of course some of us didn't register early enough... damnit