I think I especially like how everyone here treats each other. There is a wide range of personalities and opinions represented here, but I can see everyone's efforts to express themselves openly while also being sensitive and enjoying each other's differences.
I haven't frequented a ton of Christian forums, but I'm involved in a small handful. I'm probably a little biased, but what I see going on here strikes me as pretty unique and special.
So a HUGE thank you to everyone on these forums. You guys make this a great place to be!