I agree with all of the comments here about both songs. How Long also got to me when i first heard it in concert. I too had tears. And WITW is a so incredibly beautiful. I was just blown away by Don's voice when I first heard this song. I think this is the best song Don has done, both vocally and lyrically.
Both songs derserve this title but only one can be the winner. My vote is for Waiting In The Weeds.