ITU nurses are both incredible nurses and mostly better doctors than I am. If you're dying of sepsis and get the choice between an ITU nurse and any doctor below the grade of medical registrar to save you, choose the ITU nurse.
NICU nurses are equally incredible and all the ones I've met were lovely until you do something without their permission to the baby they are looking after, at which point you will die.
I've never worked in A and E.