This is a difficult question. Pretty much if you choose life over reproduction you are assuming that you are greater than anything you could spawn, which is pretty arrogant and selfish. On the other hand, most of us are pretty used to living and aren't exactly looking forward to death.

Personally, even though it is arrogant and selfish, I would choose eternal life. I can always adopt for the experience of fatherhood, and with eternal life I would have plenty of time to find enlightenment and, eventually, learn everything that I ever wanted to know. Imagine how better off the world would be if our leaders had hundreds of years of experience under their belt and had been able to remove themselves from under the burden of their ignorance and prejudices through that experience.