No need to reply anymore!You're in between "ideal weight" for the highest level of competition. Probably radial if you had to pick only one.
Some factors to consider are:
Do you sail more in higher wind or lighter wind?
Do you race and if so, which fleet would you prefer sailing in at your local club?
What level are you at with your sailing, and what events do you plan to do?
How "hiking fit" are you?