We will plan to come to hong kong: we have two option Feb. & Mar. which month is best to enjoy trip?

If considering the weather, it will differ a little in Feb. and Mar. when there are usually many cloudy days and it can be a little cool. However. Feb. is so close to Chinese New Year and many tourists will go to HK so that the charge of accommodation will climb up. To avoid the crowds, I'd recommend Mar. to you.