Most people reference height alone when talking about size but weight is often as, or more, important. Who plays bigger, Sydney Crosby (5'11", 200 lbs.) or Sebasatian Aho (6', 176 lbs)? An extreme example is Nathan Gerbe who was only 5'4" tall but at 175 lbs. built like a bowling ball and often played like one. You look at his height and think he shouldn't have made the NHL at all, yet his career encompassed 446 NHL games.
There's got to be some stat/ index that incorporates body type along with height and weight that gives a more accurate idea of "NHL size" than just height alone. I'd love to see that displayed along with the traditional physical stats we see listed.