It is a subject which has been looked at surprisingly many times in literature and movies, TV shows and even art.
It is a gift chosen by an ancient Greek but he forgot the good health part and eventually shrunk into a grasshopper.
I think if I could be guaranteed good health, that would be enough for me to choose immortality.
Of course one would outlive all your loved ones and that might be more difficult than dying but like I said, the good health part makes it a good choice.
I would answer the query in a different way. I wish to live “well” (which may or may not mean bouts with diseases on the way) however long or short a time that might be. This means to be a willing vessel to bring grace to the world of sinners that are dying and many that are lost. God can always send my life into extra innings if He chooses.
I have a different point of view than I used to. What is seen as death here will be a transformation for me, and God will accompany me as I do it.