Hitting hard isn't always different from hitting fast. Sometimes when you concentrate on hitting hard you tense up and your punch is not as hard as it would have been.

No harm in keeping to a simple plan that works for you but I wouldn't want to get stuck thinking that it's the only way you can fight because the rest will come with time. You don't have to look tricky to be tricky.

There is a guy in my gym who likes to try to imitate Ali's footwork and yell out "I am the greatest" all the time. He's not well liked because he's showy without anything to back it up. He's always saying how great he would be if he fought and how much he wants to fight but whenever the coaches find he a match he backs out. He's always a bad sport if he has to spar a more experienced guy and finds it difficult too.

The guy in the gym who is technically the best at the moment is not showy at all and he really just likes to hit hard like you - but he's developed good skills anyway. My point is you don't have to classify yourself as one or the other. If you do you might be underestimating yourself.