@Dream: Well, she's somehow a gagish character. Her speed, agility and strength level fluctuates quite much. From a quick search I saw her jumping on rockets like she walks on stairs, avoid some gunfire but for example fail to climb a wall in her hurry of escape. We can say A-Ko has the physical stats but lacks the skill.
@willyvereb: Rocket jumping and bullet evasion would imply she has great reaction time considering guns don't exist in the world of Naruto. But if consistency is an issue with A-ko's, then this battle could go either way. If Sakura is quick enough to avoid getting struck from A-ko's blows and anticipate an opening, she could take down A-ko. On the other hand judging from A-ko's feats of strength, I can't imagine Sakura surviving a blow from her if A-ko connects with any.