Jay lost because any time a MAN is involved in any kind of verbal altercation with a WOMAN, he is automatically setting himself up for immediate failure and choosing to put himself in a no-win situation. Being that Solange looks like she's sticking up for Beyonce, he probably did something real fukked up and people will speculate (cheating, abuse, etc.)
That clean, happy couple image is a bit tainted now. Not seriously, but a little bit, and people are now wondering what's really happening behind the surface when before they were just satisfied with a candy coated image.
Beyonce lost the most cause now she looks weak as fukk for not stopping the fight + it seems like she is getting played by her husband in some kinda way and is so weak that she has to have her sister stick up for her when it gets too bad.
Solange won here because she swung at Sean Carter and she stuck through with what she believed in.
nikkas wasn't really fukkin' with her like that anyway. She got some web hits and her fan base ain't goin' no where or questionin' anything. She always been kinda crazy/weird.