Soifon was defeated, the two vaizards and captain that stark "defeated" were in the same position, actually less so because they didnt have to cut off their arm. The only reason Barragan lost was because, as animus mentioned, he was basically tailored to beat him. The two vaizards who lost to stark would also have lost to Barragan, and considering Shunsui's close-quarters combat style of fighting, he would have probably lost as well unless he went bankai, still with no guarantee of winning. I can't imagine how anyone other than super-hollow ichigo, the captain commander, the magic-using vaizard, or aizen could have beaten him.