Like you say, subjective so tough to call.

Avios are best for short hops eg Toronto and Bermuda from NYC are only 9K each RT in coach... I used that for Toronto a week ago.

But I just dropped 95K each one way on Cathay from Colombo to JFK in Business, because I needed to get the return leg of my trip and I had a lot of miles.

EDIT - just by looking at google maps you would probably be able to pick up a similar 9K RT to Mexico, Belize or Cayman (pure guesswork here using my thumb on the PC screen, which is actually a 42inch TV and I am on the couch... might be a lot more value if you went to those places instead.