Too soon to discusse this, for two reasons:
1-We hardly know anything about Hashirama powers. We don't even know if he really was stronger than Madara;
2-We don't know how good Naruto really is. He's managing to stay on pair with Madara, but we don't really know, what Madara honestly can do, and I'm starting to think we never will.
We only know one thing, in a direct fight, Naruto would probably loose. Hashirama had a real advantage over bijjus, and had monstrous defense, especially against close-range combat types, like Naruto. It was really hard to get to him with all that Mokuton abillities (basing it in Madara's tech, which are probably lower than the one's from Hashirama, a true master of the Mokuton).
As far as raw power, I'm more inclined to think Naruto has more, not only due to his gigantic vitality, which come from Uzumaki and Senju genes (still low knowledge on this, but I assume they have some kind of relationship), and also due to Kurama. But he's really young, and underdeveloped in the series, he probably will be the strongest ninja ever alive, except maybe for Rikoudu, we need to see more to make any of this judgement.
Regards