I personally would not choose immortality. I like the idea of having a finite amount of time and making the most of it.
This also comes from the mindset that it's kind of rare for anyone in my family tree to reach the age of 60.
The idea of AI is intriguing and kind of scary to me. Can a bot truly feel love and empathy?
As far as transferring a digital copy of the brain...  Well, maybe that will be possible in the future. Synapse are like lightning strikes. I like to think it's that energy and not the gray matter which carries our memories. But if I was going to "live forever" I would like to think it would be through stories and wisdom that I may have passed down to my children.  Great questions!