Soda pop has a happy-go-lucky personality. He is very fond of the ladies due to being charming and handsome. Although Soda Pop seems cool all the time he has an interchangeable personality that is a combination of happy and sensitivity. Soda Pop cares for his brothers and friends greatly. His brother Pony Boy deeply admired his cool laid back traits. Soda Pop in general is a loving, happy character with an emotional side.
I believe its the first two options.
This question is actually a matter of opinion. Some would say he shows strength by knowing he has to sacrifice six of his men when he has already lost so many. They say it shows he's a strong character and a determined leader. That he's willing to sacrifice anything for his cause. That's a very strong character trait. Some, however, would say it shows he's weak. Not only did he know it wouldn't be him who died, he also didn't tell his remaining men. He let six of them die. He knew they would and he did not say anything. I guess whatever side you take is up to you.