My personal favorite is the third night, but I will never forget this show.
I think the rain might have abbreviated the first set and prompted them to finish with SOAM.
There was a deluge towards the end of the first set and during break. I remember trying to stay dry in the bar tent upper level while waiting in line to order a drink. The water was spilling off the tent and onto us.
The rain actually stopped before the second set started, but obviously played a part in how historical this set was in '09 standards.
This Tweezer, along with the Miami 12/29/09 one, were arguably the best of that year.