I LOVE Luke's ruffling-the-hair hugs. They look so genuine and affectionate.
Like others, Jess and Rory's "kid code" kiss was my favorite, followed closely by their "you two were like shrapnel" kiss in Luke's apartment. I just love the awkwardness. Hee.
As much as I love the intensity of L/L's first kiss at the Dragonfly, I think my favorite is when they were in the limo on the way back from NY. STEAMING HOT.
Lane and Zach's first date, when Brian comes home and sits down in between them, is awesome.
I know it's L/C, but I really love Chris setting up the drive-in movie for Lorelai.