My favorite song always changes, but I guess the top three that don’t really change are: Divided Sky, Reba, and Free (no order)
Reba.
Bag it, tag it, and stick it in your pipe for a smoke.
…though ghost is not far behind (see 12/31/98 for a fine example)
wow…4 years later and my answer’s completely different. 'cept divided sky. that’s probably still top five.
YEM, divided sky, harry hood, moma dance, and maybe pyite
but it’s too tough
the Miami Hood has made me a huge fan…I want to hear this song live so bad, that Miami one has captured my attention more than just about any song all Fall, maybe it has something to do with the great mix in those shows I don’t know…
but my favorite song to get down to? Moma Dance…I didn’t even really know this song very well before Cincy, but I’m pretty sure I listened to it on my way to the show(I would turn to my buddy and be like “we listened to this on the way here!” for many of the songs- not to mention calling the opener to my first phish show)…anyway this song for dancing and Chalkdust for energy, either PYITE or YEM for mind bending
^ Check out some '97 shows… Black Eyed Katy may blow your mind.
11-23-97 = Best “BEK” ever.
I looked back ay my response and it’s still basically the same but with a few added to the list. I still love YEM and Mule (live version). But I’ve gotta add DWD since I loved the studio version and it’s become an all-time great due to how they tear it up every time I hear or see it live. I’ve always been partial to Forbin’s as well.
2nd’d.
As for my favorite song … right now ill have to say 2001… or Slave… or Tweezer… so hard to choose.
DS, I think… Pure joy when hit right!
Such a hard question…I’ll pick two:
Non-jam vehicle: Rift
Jam vehicle: Ghost
honorable mentions:
Its Ice
Divided Sky
Forbins>Mockingbird (no not just because they are rare…because they are fucking sick)
Piper
Antelope
Wolfman’s
Colonel Forbin
bowie
reba
mikes
yem
Fly Famous Mockingbird
Piper
Tough.
I’ll say Curtain.
Allthough my favorite live jam may be Mike’s.
Divided Sky - first Phish song that really deeply affected me spiritually.
Reba - no explanation needed.
Can’t pick which one I like better, but I feel pretty confident saying those are tied as my favorite.
Fluff, Reba, YEM. Cant make a distinction between the three really. 
Too hard to say the favorite.