I can't imagine the ICU NTI one being more fun than the ENA conference. For one, it looks like you can do some pretty cool classes (ultrasound iv, codes, disasters, first responder stuff, etc.) in the ENA one. I doubt they'd have that fun stuff in the ICU one. Second, I'd much rather be at a conference with a bunch of wild, crazy, balls to the wall ER nurses than type A, methodical, OCD ICU nurses!!!