I originally started chording this in Am, a fine key. Unfortunately, it was making it too difficult to exterminate the elephants lurking in the melody, so I switched to Em. That improved things and after a while I was able to get the tune cleaned up and found a set of chords that I was happy with.
The only problem was that Em was just a bit low. Ok, let's capo two and go to F#m. That was a bit better, but still too low. How about capo four to G#m? Well, that pretty much fixes the vocal problems, but I don't really like being at capo four if I can avoid it.
Of course, another half step gets back around to Am. And the tune is now safely massaged. Hmm.
Fortunately, Dsus2 and G6 are both playable chords that work. :)
And the song is typed up, printed out, and ready for the filk book.