Is Oscar de la Hoya the perfect example of that weight and height when he competed in the 154 division?
Not really since he started out at like 130. He didn't really fit weight well. Julian Jackson was like 5'11" 165 walking around. And God no he wasn't skinny.
165 5'10" is far from skinny for a boxer. With the right bodytype at 5'10" fighters in the age range of 19-25 can easily hit 130-135. Think of fighters like DeMarco & John Molina.
So Oscar was more of the skinny type that looked soft at that weight huh? Julian Jacson seems to carry that weight better, looking more muscular