Not saying I'm Aragorn, buuut...
I thought Stur had a bit of a Boromir feel too him honestly. A strong man, best of his people, worn down by a relentless enemy, willing to make incredible sacrifices and hard choices for the good of his country and family. A decidedly human hero, in both his strengths and flaws.
Edit. Then again, we're all only one post in, so might be a tad early to make those kind of comparisons.