If you could be any cell in an organism, which would you be and why?

Question: If you could be any cell in an organism, which would you be and why?
- Keywords:
  cell,
  organism
Asked by 10fortunem to Mario, Dr D on 18 Jun 2013.
- Andrew Devitt answered on 18 Jun 2013:
  
  I’ve answered this question before to someone else but you know what? I can change my mind.
  
  Before I said I’d like to be a macrophage – this means BIG eater – and I love eating. But I’d also like to be a neurone because they live for a really long time.

Question: If you could be any cell in an organism, which would you be and why?