Was there ever a fictional character who you admired so much that you strived to be like him or her?
Wow, I don't think I've ever responded to Writer's Block before. But there have been numerous fictional characters that I have wished I could be like, although I have never 'strived'. In roughly chronological order:
Dune - Bene Gesserit adepts
Sailor Moon - Mizuno Ami, Kaiou Michiru, Tenou Haruka
Most recently, Patrick Jane from The Mentalist. :) I'm in love with him and I also kind of want to be just like him at the same time. That's overstating it a bit, but I think you get the idea.
I don't think there's anything wrong with looking up to and admiring a fictional character. Someone has created this character for a specific purpose and with a goal in mind. If we can create any characters we choose, why not choose to create something/someone worth wanting to become like?