Bella (Swan) Cullen
Why wouldn't anyone choose to be her! She is changed into a vampire by the man she is destined to be with FOREVER, she completely skips becoming a raging newborn (which I think the newborn part sounds rather scary, obviously it affected Jasper!), she has the most wonderful family of humans, vampires, and werewolves combine, Renesmee who is adorable and talented and 1 of a kind, and in the end she is able to protect every single person she loves!
I would love to be Bella because she is unique and original no one can read her mind and she is very powerful as a vampire and she has a loving husband edward :) <3