Quoting pregnant with triplets...:" Oh. Sorry, I misunderstood. Okay, so where in my OP did I EVER say anything about abortion...? Even ... [snip!] ... there is a BIG difference between not giving a shit enough to abort them, and actually giving them all a chance at life, no?"
I support your decision. Sounds like you are very mature - and have the best interests of all your babies at heart.
Personally, I would keep the last one to be born. He/She was gracious to let the other 2 be born first. That is how I would see it but thats me. Good luck hon in this decision.