A good shot involves not cutting off the tail, the bottom fins, the head and the angler's head.
A good shot also involves holding a GT so it is not slumped or angled too far back - they make for flat and uninspiring shots.
The fish is the focal point, so make it look good! How you achieve this, who cares. The wave of people heralding flat, front-on shots do no favors to the fish or the photo, they are plain uninspiring.