I have heard a long time excuse,around the same age as "why Duran quit" excuses,being that Leonard abandoned his gameplan in the Montreal brawl and that cost him his victory,but how right is that? In my opinion though...nope, Leonard's mistake in that fight was exactly his gameplan of finishing Duran around 5,and in fact,most of Leonard's best showings were him pushing the offensive in the end. He finished Ayub,Lalonde,Hearns,Green and many others, that's his best performances with the brawling style,he even gave a good effort on the second fight with Hearns,also pushing the action. I think his flaw that makes him vulnerable while pressuring is how he stands a bit too straight at times,it could left him open to be pressured or get caught with some good shots while he was leaning back.
Of course he was. I think the people who say otherwise have just never watched him fight and go off what they've heard regarding him and Ali. Same thing with the people who think similarly of Robinson. Sure, they had Ali like movement, but they were not the same style of fighters as him just because they moved similarly. Both of them were at their meculiar best when they went on the offensive and went ham on their opponents, something Ali just did not do.
I think Ali did improve his offensive game a bit on the 70s,he could hit hard when he wanted to even if he wasn't a fully detonating puncher,look out his match vs Lyle,when Lyle gassed out Ali smashed him with those Stockton slaps.
Leonard had plenty of grit to go along with power, speed, pride, and determination. He could fight with you plenty when the mood hit.
Ray had a babyface and a nice smile, but dude was a stone killer in the ring. He was more fighter than boxer — just had the gift of hand speed and very good coaching/learning to pick his spots and go for it when he had the advantages or needed to put his foot on the gas.