User blog comment:Leviathan2186/Samara vs Jack vs Aria?/@comment-2029535-20130823062604

I vote for Aria. You don't get to be top dog of a place like Omega without some serious ass-kicking ability. Like Samara, she has the Reave ability, which lets her drain opponents' health and barriers to augment her own. She also has her Lash attack and Flare, which is the most powerful biotic power in ME3, as opposed to Samara's Throw and Pull attacks.

Unfortunately, while Jack's Shockwave power is impressive, she doesn't have a power like Reave to quickly restore herself, so in a prolonged fight, she would probably run out of stamina before either Samara or Aria. All they'd have to do is wait her out, let her expend her energy on all those big, impressive Shockwaves and Warp attacks, then hit her hard when she gets stuck cooling down. Plus, character-wise, Jack isn't nearly as experienced as the other two - rage and aggression generally don't help much against skill and patience.