I think Data made the wrong choice of escape pods to rescue.
A) The Immortal had a LONG, full life -- without question -- while Rhea's life was just beginning.
B) Didn't Flint divulge the secrets of positronic resurrection to Data and the other AIs after being tortured? Data could've saved Rhea, then re-ignited Lal later with the Immortal's instructions.
C) Rhea's just a great character and it's disappointing that her story in Trek lit is over.
How about the rest of you? Do you agree/disagree with Data's choice?