its so hard to answer this without being disrespectful. Jeff Fenech comes to mind. He could actually box and had decent footwork and a jab when he wanted but his personality was "fight to win". This meant lots of coming forward and being a pure cardio monster at times being rather reckless. His cardio and toughness were absolutely ridiculous and he relied on mostly that to win his big fights rather than pure finesse technique. He would literally grab and throw guys in the corner as well as crowd a lot of his own work but the volume output was something else. As an inside fighter he is probably one of the greatest ever even though to the naked eye it might be unpleasing to watch. He was very hittable but he could take it and dish out three times as much. Arturo Gatto was inducted in the HOF in 2013. The limitations of his style are pretty well known.
Gatti was pretty skilled defensively as well. Every shot that was thrown at him, he could block ...... with his head.