Ahaha, I remember the "My first Shin Megami Tensei game - Tips for a beginner?" thread. It was a nice thread which I enjoyed commenting in as well. It was such a nice read as well. So nice to see other people chiming in to give tips to help you out.
And I did a one panel comic for your mobile thread, which I am still embarrassed about... >_<
Anyways, my personal favorite threads:
"Your Favorite Games from Your Favorite Franchises"
http://gamrconnect.vgchartz.com/thread.php?id=197441&page=1
...though this one is a little outdated. One game in particular needs to be changed.
"Special Themed Consoles: Got Any?"
http://gamrconnect.vgchartz.com/thread.php?id=198365&page=1
I felt this one really brought people in in the most positive of ways. I got to talk to a lot of people and see a lot of cool SE consoles xD
I also have my October long Creepy House series, but those make up a lot of threads, so I won't be posting those. Maybe just one...
"Creepy House of Horrors: The Little Creeper's Room"
http://gamrconnect.vgchartz.com/thread.php?id=208823&page=1
Dance my pretties!
The Official Art Thread - The Official Manga Thread - The Official Starbound Thread