Not easy.
Is business the goal? Marshall seems the clear winner.
Fwiw, I think the vibe at USC and UCLA is pretty similar, so I’m surprised you aren’t giving USC more consideration. USC has a beautiful campus. The classes will probably be smaller at USC and Marshall is well known.
If you want to go to NYU for the sake of being at NYU, go. But do not go there assuming you will be able to get into Stern. But you said you love the vibe at UCLA and you will be able to study the same major as at NYU. So I’m not seeing a downside to UCLA, plus as a CA resident, you can’t beat the cost.
I think you should be ruthless though. Eliminate the one of least interest and don’t try to convince yourself of the pros of the eliminated school. Then think hard about the two remaining choices.