Well, probably this moment, from the same event:

I was as high as a kite (this was part of that wild photo-taking session that D, just described). Or possibly the moment shown in enterprikayak's sig

was the best.
But I will tell a heartwarming story related to
D.'s story above. I had a blast at Vulcon. A friend at work, noted that he had to go all the way to Europe to have as much fun as I had in Cleveland. That about sums it up.
But the context was this. I had just finished my story "Heresy" like a week before I arrived at the convention. It had been a roller coaster ride because it was like the first story I'd ever written, and I was pleased myself for completing it, but I'd had a storm of negative comments and Distracted had been my beta through the whole thing: giving wise advice and holding my hand and cheering me up after I ignored some of it,

The story caused a huge storm on the forum too, with Bucky stepping in to smooth things over. So anyways, it had been an emotional week, but now there I was, heading to Cleveland to meet all my Tucker sibs. I wasn't able to get there for the first night because of a conflicting astronomy event and so I got there on the second day.
Distracted and I had exchanged pictures before the event but had never met in person. I got to the convention in time to cheer her on in the costume contest, which yes, she lost, even though she looked stunning! So there she is dressed as MU T'Pol with a crowd of Not Dead fans surrounding her. She was all upset that she had lost or been disqualified or whatever, and I was telling her that she should be happy, it had been great. And she seemed totally well, distracted . . . . Then like two minutes into our conversation and right in the middle of one of her sentences, she stopped, gasped and grabbed me in a hug. She had only just then read my name tag and realized who I was. LOL! I still remember that moment. What a wonderful friend!
I will pick
Silverbullet to go next.