Congrats on surviving nursing school!
Things used to be more complicated before computerized boards, when every state wrote their own exam and decided what the passing score was. According to my mom, 30 years ago a license from some states were more impressive than others, and passing in one place wasn't recognized everywhere.
The way it works now is you take your boards anywhere (and I agree with the other poster- take them while school is still fresh in your mind.) The exam is on computer and I believe there is no difference between the states.
When you decide where you want to work, ask the board in the new state to send you a Licensure by Endorsement application. You will send a form from that package to the state you took your boards in, they will verify your score for the new state. The new state issues you a license that is the exact same as any nurse who took the boards there.
Sounds more difficult than it is.
I'm a traveler, I do it 4 times a year- it's not that bad.