Career Choice Last semester of school

Hello Everyone,

First time writer. I am on the verge of complete the BSN program at SDSU with one more semester to complete this coming Spring.
I would like some advice concerning two externships I have offering me a position. One externship I have in the ED, the other externship I am waiting for an interview. In the 2nd externship I put down the ED but now I am thinking about what kind of experience would be best for me as a student before heading out into the work force. The 2nd externship has positions available in the ICU and PSU in a general hospital.

My question to you readers is: What do you think would be the best learning experience for a nursing student who has worked in the ED as an extern at a different hospital, in this new externship (granted i get it). The ED there, or a PSU or ICU care setting. I'm torn between what I want to do because unfortunately I can't do it all. Any feedback on where I would learn the most and what would be a good first step to take in my career would be greatly appreciated.

Thanks, CR