Hi! I've been a NICU nurse for 15 years, and in reading your assessment of the NICU, (that most patients have the same diagnosis), I must tell you that the very reason I have stayed in the NICU for so long is the variety of diagnoses, plus I simply love it there! They will have some commonalities, I agree. They are premature, premature and sick, or term and sick. However, no two cases are just alike. We get everything from major anomalies, deformed hearts, pneumonia, extreme RDS...you name it, we get it! I love taking care of preemies, with their tiny little trusting personalities. I call them "little eaglets without feathers". If you are looking for a unit that is totally built on teamwork, the NICU is it. I've cross-trained in ED. It was okay, and the nurses who work there love it. I'm glad to know that they are there. But as for me, they can have that brand of "excitement". (Can you believe that a former paramedic would say that?) There is no unit quite like a NICU! When we have preemies and sick terms rolling through the door as fast as we can get them admitted, that's plenty of excitement for me! Good luck in your search for the right specialty for yourself. Lots of choices out there!