[Lily Bracegirdle]

I think Boromir would have accepted Aragorn as king. The problem would be that Denethor would not have despaired if Boromir lived and so he too would have been alive at the end of the War. I don't think Denethor would have willingly given up power to Aragorn if he had lived. I do think he would have been forced out, though, and I don't think Boromir or Faramir would have supported their father against Aragorn.

-Lily