I guess that part of why I didn't enjoy it is that a lot of what Tolkein introduced has now been done so many times by so many other authors (+films, computer games, etc) that it felt like there was nothing new there for me even though it came first.
But props to Tolkein for pretty much creating the standard lore which is used so much in the genre (unless there were others who I don't know about who standardised what orcs, wights, etc were before him?)
But when he is crowned his name is Elessar ... So, "Aragorn" never "ruled" Gondor. ;)