Last time I listened to them I decided that "When The Levee Breaks" was my favorite. Since my brother's been blasting Physical Graffiti from his room all the damn time, I'm beginning to grow a hatred for them.
I love Kashmir because TheGanjaKing's wife does this dance thing to it, ohhhhhh god does that get me goin.... But I also hafta mention (since no one's said it yet) "How Many More Times"
I can't decide between Dazed and Confused or Kashmir. I know they're both radio played out hits, but it's because the songs rock!
I have a few favorite Zeppelin songs. Good Times Bad Times, Heartbreaker, Moby Dick (best drum solo ever!), Immigrant Song (love that chorus ) and Dazed and Confused.