judging fights is subjective. it all depends on what you're looking at... the official judging was very controversial too.
the thing with leonard is, most times he was normally in the center of the ring....you are right, he was not a pure defensive boxer like sweet pea, but he was counter-puncher with great defense who relied on maintaining distance. duran on the other hand, was a brawler...that was not sugar ray's style. ray was not a seek and destroy type guy...he was primarily a boxer-puncher. it was not that duran was able to impose his style on leonard. if you watch the fight, you see there are moments when leonard is able to easily keep duran at bay and counter effectively. but in this fight leonard WANTED a firefight. he sought out trench warfare, which was not his strong suit. he said afterwards it was the things duran had said about his wife that made him angry. he wanted to beat up duran, humiliate duran at his own game and furthermore, he wanted to shock and surprise duran by showing he was the tougher guy. and he did prove his toughness throughout the fight... in one round, i think it was 12 or 13, they are going toe to toe and it's leonard who beats duran back and hurts duran. he was outslugging the slugger.
but in the fight, leonard took a while to get going...the middle rounds were mostly duran because duran kept wrestling and brawling srl against the ropes and basically preventing ray from doing much. as the fight wore on, leonard started to get in more of his power shots, basically learning on the job...duran still had good moments. as i said, i scored it for srl...if they had the rule back then judges could not score an even round, i think it would be a toss-up or close for srl.