The Deism thread was a great discussion... http://www.tigerforums.com/showthread.php?t=25828&highlight=deism and this one started in 2004 but lasted until recently...the black widow is a classic. Peabody vs Beast. http://www.tigerforums.com/showthread.php?t=18795&highlight=black+widow
and the injured soldier thread is an instant classic! http://www.tigerforums.com/showthread.php?t=34218
The Question and Answer thread. The Katrina Thread without a doubt. (Hopefully Wingman has got Box seats up in the sky) And the threads about the rebel flag on FSA
I pimp all my threads, so of course I vote for my own...LOL. Honestly, I vote for Tirk's "The Unease that is Les Miles" thread. Most of Tirk's threads are pretty fresh, but that one was the best for it kind of put into words what many of us felt but couldn't express quite so well.