Carmex or Burts bees. Carmex has gotten me through many a winter and desert but I've just in the past few months gave burts a go and really like it.
I have used Carmax for years and it works great I also like Badger organic lip balm
Got some burt's bee's wax with pomergranite about 4 days ago due to this thread.
After 4 days in Connecticut's changing climate, I can say its not as waxy as chapstick but I don't buy into the burt's bees wax.
So far the best I've tried is that tub of blistex lip balm.
My search continues.
Ah, but were you brave enough to put the "I've got chickenpoop on my lips" bumper sticker on your car?I used Chickenpoop last year, worked pretty well, only could find it at a few stores http://www.ilovechickenpoop.com/
Jack Black Intense Therapy lip balm. Very good stuff.
Coming from a guy that uses his lips often (I play brass instruments), nothing beats DCT by Blistex ( http://www.blistex.com/products/dct )
I can't believe nobody has mentioned body shop hemp lip balm. I live in a very cold dry climate and it does the job for me.