I like the texture of the smaller sand sharks. My dad used to catch them in Florida and bring home filets. We grilled them since they are not flaky and stay in one piece on the grill. Delicious taste and texture.
One time at a fishing village a boat had just come in with a huge hammerhead shark they had caught. Because the shark I had eaten before was so good we bought a couple chunks off that large one. It was not good at all - rather tough with some kind of veins of cartilage or something running through the meat.
Bigger is NOT always better! I'll stick with the smaller sharks.