Before we get too far into this, have you ridden both? This should be the main
consideration.
Also
1. Do you think you could ever want to attach a rack?
2. or Fenders for commuting?
If affirmative for either (1) or (2) go Nova.
If the answer is definitely "Never" go 1500.
IMHO, IMHO, IMHO, IMHO, IMHO