The logic of decadent reincarnation would tell us Hashirama and Madara had far more Chakra than Naruto and Sasuke. This is because by each generation, the Chakra of Indra & Ashura becomes less in quantity and quality; devolution, so to speak. Since Madara & Hashirama had existed +80 years before Naruto and Sasuke were born, it is obvious they possess a lot more Chakra.
Madara could control Kurama for hours non-stop, create Juubi proportional sized Katon, his gigantic Susanoo including PS, and the fact he inherited most powerful Chakra in the Uchiha. Hashirama could create gigantic city-sized Mokuton, giant construction that can dwarf mountains (Shinsuusenju + Mokujin), and the fact his Chakra is comparable to the Chakra Kurama gave to the Shinobi Alliance. They defiantly had feats and hypes to show they are superior.
However, Naruto had Kurama's supply, so he has more Chakra than them. This is only because of Kurama's reserves, not because of Naruto.