One thing that occurs to me in the time since Gandalf's passing is that Tolkien's book Aragorn is a much more self-doubting leader than Aragorn has expressed so far in the film.
Granted, much of the self-doubting of the book is internal thought, difficult to show on film. I am interested to see if PJ brings any of Aragorn's insecurities out in TTT... or if he allows him to remain heroic and confident on the outside, without all the doubts we know he has from the book.
Not just here, some of that comes out on the way from Bree to Rivendell too...
'I think,' answered Strider slowly, as if he was not quite sure, 'I think the best thing is to go as straight eastward from here as we can, to make for the line of hills, not for Weathertop. There we can strike a path I know that runs at their feet; it will bring us to Weathertop from the north and less openly. Then we shall see what we shall see.'
See, I didn't rely on my faulty memory this time... ;)